[Solved] Not a registered eBean entity?

Please help me. Lots of people are whining that my plugin doesn't have persistence, but how do you register an ebean entity? When I start my plugin it says what it should, then I get:

Code:

15:14:57 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'rename' in plugin DispNameChanger v1
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:85)
    at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:255)
    at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:675)
    at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:638)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:632)
    at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:32)
    at net.minecraft.server.NetworkManager.a(NetworkManager.java:195)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:74)
    at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
    at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:370)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:285)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
Caused by: javax.persistence.PersistenceException: me.captain.DispNameChanger.DNCPersistence is NOT an Entity Bean registered with this server?
    at com.avaje.ebeaninternal.server.core.DefaultServer.createQuery(DefaultServer.java:1031)
    at com.avaje.ebeaninternal.server.core.DefaultServer.createQuery(DefaultServer.java:988)
    at com.avaje.ebeaninternal.server.core.DefaultServer.find(DefaultServer.java:1024)
    at me.captain.DispNameChanger.DispNameChanger.onCommand(DispNameChanger.java:83)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:35)
    ... 12 more

The two classes in my jar (pastebin links):
DispNameChanger.java
DNCPersistence.java

 

You need to add the eBean setup to your JavaPlugin class:

Code:

 private void setupDatabase() {
        try {
            getDatabase().find(DNCPersistence.class).findRowCount();
        } catch (PersistenceException ex) {
            System.out.println("Installing database for " + getDescription().getName() + " due to first time usage");
            installDDL();
        }
    }
    @Override
    public List<Class<?>> getDatabaseClasses() {
        List<Class<?>> list = new ArrayList<Class<?>>();
        list.add(DNCPersistence.class);
        return list;
    }

And :

Code:

 public void onEnable() {
setupDatabase()
}

And you need to add this to the plugin.yml

Code:

database: true

 

hmm, as I recall I had already addd that, but I probably deleted it for some reason. I'll get back to you @Sammy

@Sammy wtf?

Code:

16:24:54 [SEVERE] Error: Error executing stmt[create table DispNameChanger.DispNameChanger ( id                        integer primary key, player_name               varchar(255), display_name              varchar(255)) ] error[[SQLITE_ERROR] SQL error or missing database (unknown database DispNameChanger)] loading DispNameChanger v1 (Is it up to date?)
javax.persistence.PersistenceException: Error: Error executing stmt[create table DispNameChanger.DispNameChanger ( id                        integer primary key, player_name               varchar(255), display_name              varchar(255)) ] error[[SQLITE_ERROR] SQL error or missing database (unknown database DispNameChanger)]
    at com.avaje.ebeaninternal.server.ddl.DdlGenerator.runScript(DdlGenerator.java:233)
    at org.bukkit.plugin.java.JavaPlugin.installDDL(JavaPlugin.java:253)
    at me.captain.DispNameChanger.DispNameChanger.setupDatabase(DispNameChanger.java:44)
    at me.captain.DispNameChanger.DispNameChanger.onEnable(DispNameChanger.java:74)
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:127)
    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:632)
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:218)
    at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:116)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:94)
    at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:217)
    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:204)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:144)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:259)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
Caused by: java.lang.RuntimeException: Error executing stmt[create table DispNameChanger.DispNameChanger ( id                        integer primary key, player_name               varchar(255), display_name              varchar(255)) ] error[[SQLITE_ERROR] SQL error or missing database (unknown database DispNameChanger)]
    at com.avaje.ebeaninternal.server.ddl.DdlGenerator.runStatement(DdlGenerator.java:281)
    at com.avaje.ebeaninternal.server.ddl.DdlGenerator.runStatements(DdlGenerator.java:246)
    at com.avaje.ebeaninternal.server.ddl.DdlGenerator.runScript(DdlGenerator.java:224)
    ... 13 more
Caused by: java.sql.SQLException: [SQLITE_ERROR] SQL error or missing database (unknown database DispNameChanger)
    at org.sqlite.DB.newSQLException(DB.java:383)
    at org.sqlite.DB.newSQLException(DB.java:387)
    at org.sqlite.DB.throwex(DB.java:374)
    at org.sqlite.NativeDB.prepare(Native Method)
    at org.sqlite.DB.prepare(DB.java:123)
    at org.sqlite.PrepStmt.<init>(PrepStmt.java:42)
    at org.sqlite.Conn.prepareStatement(Conn.java:404)
    at org.sqlite.Conn.prepareStatement(Conn.java:399)
    at org.sqlite.Conn.prepareStatement(Conn.java:383)
    at com.avaje.ebeaninternal.server.lib.sql.PooledConnection.prepareStatement(PooledConnection.java:426)
    at com.avaje.ebeaninternal.server.lib.sql.PooledConnection.prepareStatement(PooledConnection.java:396)
    at com.avaje.ebeaninternal.server.ddl.DdlGenerator.runStatement(DdlGenerator.java:271)
    ... 15 more

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

If you already have a DispNameChanger.db made delete it
Don't forget to create a eBean.properties file (doesn't mater if its empty)
If nothing works I must see the new src

 

Oh. Ok. Where do I put the eBean.properties file? For now I will leave it in plugins/DispNameChanger

Ok. Error (sorry if Im stupid)

Code:

>Andrews-MacBook-Pro:ServerFiles andrewbulkeley$ java -Xmx512M -Xms512M -jar craftbukkit.jar
[Lnet.minecraft.server.Statistic;@5cbfe9d
146 recipes
[Lnet.minecraft.server.Statistic;@5cbfe9d
16 achievements
16:52:44 [INFO] Starting minecraft server version Beta 1.5_02
16:52:44 [WARNING] **** NOT ENOUGH RAM!
16:52:44 [WARNING] To start the server with more ram, launch it as "java -Xmx1024M -Xms1024M -jar minecraft_server.jar"
16:52:44 [INFO] Loading properties
16:52:44 [INFO] Starting Minecraft server on *:25565
16:52:44 [WARNING] **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!
16:52:44 [WARNING] The server will make no attempt to authenticate usernames. Beware.
16:52:44 [WARNING] While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any username they choose.
16:52:44 [WARNING] To change this, set "online-mode" to "true" in the server.settings file.
16:52:44 [INFO] This server is running Craftbukkit version git-Bukkit-0.0.0-700-gf3ae4c3-b733jnks (MC: 1.5_02)
16:52:44 [INFO] Preparing level "world"
16:52:44 [INFO] Preparing start region
16:52:45 [SEVERE] ebean.properties not found
16:52:45 [INFO] DataSourcePool [DispNameChanger] autoCommit[false] transIsolation[SERIALIZABLE] min[2] max[20]
16:52:46 [INFO] SubClassFactory parent ClassLoader [org.bukkit.plugin.java.PluginClassLoader]
16:52:46 [INFO] Entities enhanced[0] subclassed[1]
16:52:46 [INFO] Permission system not detected, defaulting to OP
16:52:46 [INFO] [Annoyer] Annoyer has been enabled!
16:52:46 [INFO] Permission system not detected, defaulting to OP
16:52:46 [INFO] Can not test connection as heartbeatsql is not set
16:52:46 [INFO] Closing Connection[DispNameChanger.1] psReuse[0] psCreate[1] psSize[0]
16:52:46 [INFO] Installing database for DispNameChanger due to first time usage
16:52:46 [INFO] runScript
16:52:46 [INFO] executing 1 of 1 create table disp_names ( id                        integer primary key, player_...
16:52:46 [INFO] ... end of script
16:52:46 [INFO] [DispNameChanger] DispNameChanger has been enabled!
16:52:46 [INFO] Permission system not detected, defaulting to OP
16:52:46 [INFO] [SimpleCompass] Version 1.0 Has been enabled!
16:52:46 [INFO] [SimpleFall] Version 1.0 has been enabled!
16:52:46 [INFO] [SimpleWhisper] Permission system not detected, defaulting to OP
16:52:46 [INFO] [SimpleWhisper] SimpleWhisper has been enabled!
16:52:46 [INFO] Done (0.244s)! For help, type "help" or "?"
16:53:12 [INFO] captainawesome7 [/10.0.1.30:49984] logged in with entity id 123
16:53:21 [INFO] Can not test connection as heartbeatsql is not set
16:53:21 [INFO] Closing Connection[DispNameChanger.0] psReuse[0] psCreate[2] psSize[1]
16:53:21 [INFO] DataSourcePool [DispNameChanger] grow; id[DispNameChanger.2] busy[3] max[20]
16:53:21 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'rename' in plugin DispNameChanger v1
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:85)
    at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:255)
    at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:675)
    at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:638)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:632)
    at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:32)
    at net.minecraft.server.NetworkManager.a(NetworkManager.java:195)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:74)
    at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
    at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:370)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:285)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
Caused by: javax.persistence.PersistenceException: Query threw SQLException:[SQLITE_ERROR] SQL error or missing database (no such column: PlayerName) 
Bind values:[null] 
Query was:
select t0.id c0, t0.player_name c1, t0.display_name c2 
from disp_names t0 
where lower(PlayerName) =?  


    at com.avaje.ebeaninternal.server.query.CQuery.createPersistenceException(CQuery.java:849)
    at com.avaje.ebeaninternal.server.query.CQuery.createPersistenceException(CQuery.java:829)
    at com.avaje.ebeaninternal.server.query.CQueryEngine.findMany(CQueryEngine.java:238)
    at com.avaje.ebeaninternal.server.query.DefaultOrmQueryEngine.findMany(DefaultOrmQueryEngine.java:104)
    at com.avaje.ebeaninternal.server.core.OrmQueryRequest.findList(OrmQueryRequest.java:344)
    at com.avaje.ebeaninternal.server.core.DefaultServer.findList(DefaultServer.java:1469)
    at com.avaje.ebeaninternal.server.core.DefaultServer.findUnique(DefaultServer.java:1236)
    at com.avaje.ebeaninternal.server.querydefn.DefaultOrmQuery.findUnique(DefaultOrmQuery.java:924)
    at com.avaje.ebeaninternal.util.DefaultExpressionList.findUnique(DefaultExpressionList.java:217)
    at me.captain.DispNameChanger.DispNameChanger.onCommand(DispNameChanger.java:103)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:35)
    ... 12 more
Caused by: java.sql.SQLException: [SQLITE_ERROR] SQL error or missing database (no such column: PlayerName)
    at org.sqlite.DB.newSQLException(DB.java:383)
    at org.sqlite.DB.newSQLException(DB.java:387)
    at org.sqlite.DB.throwex(DB.java:374)
    at org.sqlite.NativeDB.prepare(Native Method)
    at org.sqlite.DB.prepare(DB.java:123)
    at org.sqlite.PrepStmt.<init>(PrepStmt.java:42)
    at org.sqlite.Conn.prepareStatement(Conn.java:404)
    at org.sqlite.Conn.prepareStatement(Conn.java:399)
    at org.sqlite.Conn.prepareStatement(Conn.java:383)
    at com.avaje.ebeaninternal.server.lib.sql.PooledConnection.prepareStatement(PooledConnection.java:426)
    at com.avaje.ebeaninternal.server.lib.sql.PooledConnection.prepareStatement(PooledConnection.java:396)
    at com.avaje.ebeaninternal.server.query.CQuery.prepareBindExecuteQuery(CQuery.java:399)
    at com.avaje.ebeaninternal.server.query.CQueryEngine.findMany(CQueryEngine.java:198)
    ... 20 more
16:53:24 [INFO] <?4DERP> fuck
16:53:26 [INFO] Connection reset
16:53:26 [INFO] captainawesome7 lost connection: disconnect.quitting
>

will post new source in a minute

http://pastebin.com/63faDvGu
http://pastebin.com/kMvxStkn

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Code:

16:52:45 [SEVERE] ebean.properties not found

Try Creating this file on your server main folder
After that remove the db
If it doesn't work try removing the @NotEmpty remove the database again and try it

Code:

@NotEmpty <---- delete this
    private String DisplayName; //Player chosen name

 

ok

Code:

>Andrews-MacBook-Pro:ServerFiles andrewbulkeley$ java -Xmx512M -Xms512M -jar craftbukkit.jar
[Lnet.minecraft.server.Statistic;@23394894
146 recipes
[Lnet.minecraft.server.Statistic;@23394894
16 achievements
17:11:26 [INFO] Starting minecraft server version Beta 1.5_02
17:11:26 [WARNING] **** NOT ENOUGH RAM!
17:11:26 [WARNING] To start the server with more ram, launch it as "java -Xmx1024M -Xms1024M -jar minecraft_server.jar"
17:11:26 [INFO] Loading properties
17:11:26 [INFO] Starting Minecraft server on *:25565
17:11:26 [WARNING] **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!
17:11:26 [WARNING] The server will make no attempt to authenticate usernames. Beware.
17:11:26 [WARNING] While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any username they choose.
17:11:26 [WARNING] To change this, set "online-mode" to "true" in the server.settings file.
17:11:26 [INFO] This server is running Craftbukkit version git-Bukkit-0.0.0-700-gf3ae4c3-b733jnks (MC: 1.5_02)
17:11:26 [INFO] Preparing level "world"
17:11:26 [INFO] Preparing start region
17:11:27 [INFO] Preparing spawn area: 93%
17:11:27 [INFO] DataSourcePool [DispNameChanger] autoCommit[false] transIsolation[SERIALIZABLE] min[2] max[20]
17:11:28 [INFO] SubClassFactory parent ClassLoader [org.bukkit.plugin.java.PluginClassLoader]
17:11:28 [INFO] Entities enhanced[0] subclassed[1]
17:11:28 [INFO] Permission system not detected, defaulting to OP
17:11:28 [INFO] [Annoyer] Annoyer has been enabled!
17:11:28 [INFO] Permission system not detected, defaulting to OP
17:11:28 [INFO] Can not test connection as heartbeatsql is not set
17:11:28 [INFO] Closing Connection[DispNameChanger.1] psReuse[0] psCreate[1] psSize[0]
17:11:28 [INFO] Installing database for DispNameChanger due to first time usage
17:11:28 [INFO] runScript
17:11:28 [INFO] executing 1 of 1 create table disp_names ( id                        integer primary key, player_...
17:11:28 [INFO] ... end of script
17:11:28 [INFO] [DispNameChanger] DispNameChanger has been enabled!
17:11:28 [INFO] Permission system not detected, defaulting to OP
17:11:28 [INFO] [SimpleCompass] Version 1.0 Has been enabled!
17:11:28 [INFO] [SimpleFall] Version 1.0 has been enabled!
17:11:28 [INFO] [SimpleWhisper] Permission system not detected, defaulting to OP
17:11:28 [INFO] [SimpleWhisper] SimpleWhisper has been enabled!
17:11:28 [INFO] Done (0.246s)! For help, type "help" or "?"
17:11:42 [INFO] captainawesome7 [/10.0.1.30:50267] logged in with entity id 122
17:11:52 [INFO] Can not test connection as heartbeatsql is not set
17:11:52 [INFO] Closing Connection[DispNameChanger.0] psReuse[0] psCreate[2] psSize[1]
17:11:52 [INFO] DataSourcePool [DispNameChanger] grow; id[DispNameChanger.2] busy[3] max[20]
17:11:52 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'rename' in plugin DispNameChanger v1
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:85)
    at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:255)
    at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:675)
    at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:638)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:632)
    at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:32)
    at net.minecraft.server.NetworkManager.a(NetworkManager.java:195)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:74)
    at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
    at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:370)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:285)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
Caused by: javax.persistence.PersistenceException: Query threw SQLException:[SQLITE_ERROR] SQL error or missing database (no such column: PlayerName)
Bind values:[null]
Query was:
select t0.id c0, t0.player_name c1, t0.display_name c2
from disp_names t0
where lower(PlayerName) =?
 
    at com.avaje.ebeaninternal.server.query.CQuery.createPersistenceException(CQuery.java:849)
    at com.avaje.ebeaninternal.server.query.CQuery.createPersistenceException(CQuery.java:829)
    at com.avaje.ebeaninternal.server.query.CQueryEngine.findMany(CQueryEngine.java:238)
    at com.avaje.ebeaninternal.server.query.DefaultOrmQueryEngine.findMany(DefaultOrmQueryEngine.java:104)
    at com.avaje.ebeaninternal.server.core.OrmQueryRequest.findList(OrmQueryRequest.java:344)
    at com.avaje.ebeaninternal.server.core.DefaultServer.findList(DefaultServer.java:1469)
    at com.avaje.ebeaninternal.server.core.DefaultServer.findUnique(DefaultServer.java:1236)
    at com.avaje.ebeaninternal.server.querydefn.DefaultOrmQuery.findUnique(DefaultOrmQuery.java:924)
    at com.avaje.ebeaninternal.util.DefaultExpressionList.findUnique(DefaultExpressionList.java:217)
    at me.captain.DispNameChanger.DispNameChanger.onCommand(DispNameChanger.java:103)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:35)
    ... 12 more
Caused by: java.sql.SQLException: [SQLITE_ERROR] SQL error or missing database (no such column: PlayerName)
    at org.sqlite.DB.newSQLException(DB.java:383)
    at org.sqlite.DB.newSQLException(DB.java:387)
    at org.sqlite.DB.throwex(DB.java:374)
    at org.sqlite.NativeDB.prepare(Native Method)
    at org.sqlite.DB.prepare(DB.java:123)
    at org.sqlite.PrepStmt.<init>(PrepStmt.java:42)
    at org.sqlite.Conn.prepareStatement(Conn.java:404)
    at org.sqlite.Conn.prepareStatement(Conn.java:399)
    at org.sqlite.Conn.prepareStatement(Conn.java:383)
    at com.avaje.ebeaninternal.server.lib.sql.PooledConnection.prepareStatement(PooledConnection.java:426)
    at com.avaje.ebeaninternal.server.lib.sql.PooledConnection.prepareStatement(PooledConnection.java:396)
    at com.avaje.ebeaninternal.server.query.CQuery.prepareBindExecuteQuery(CQuery.java:399)
    at com.avaje.ebeaninternal.server.query.CQueryEngine.findMany(CQueryEngine.java:198)
    ... 20 more
17:11:54 [INFO] <derp> wow
17:11:56 [INFO] Connection reset
17:11:56 [INFO] captainawesome7 lost connection: disconnect.quitting
>

I put the eBean.properties in my main server directory. It seems that there was no column or something

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

@captainawesome7
try deleting the database file from /plugins/DispNameChanger/DispNameChanger.db

Also, your playerName must be @NotEmpty

 

Ok, and I already did delete it several times.

Code:

19:25:00 [INFO] Can not test connection as heartbeatsql is not set
19:25:00 [INFO] Closing Connection[DispNameChanger.0] psReuse[0] psCreate[2] psSize[1]
19:25:00 [INFO] DataSourcePool [DispNameChanger] grow; id[DispNameChanger.2] busy[3] max[20]
19:25:00 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'rename' in plugin DispNameChanger v1
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:85)
    at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:255)
    at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:677)
    at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:640)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:634)
    at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:32)
    at net.minecraft.server.NetworkManager.a(NetworkManager.java:195)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:74)
    at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
    at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:370)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:285)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
Caused by: javax.persistence.PersistenceException: Query threw SQLException:[SQLITE_ERROR] SQL error or missing database (no such column: PlayerName)
Bind values:[null]
Query was:
select t0.id c0, t0.player_name c1, t0.display_name c2
from disp_names t0
where lower(PlayerName) =?
 
    at com.avaje.ebeaninternal.server.query.CQuery.createPersistenceException(CQuery.java:849)
    at com.avaje.ebeaninternal.server.query.CQuery.createPersistenceException(CQuery.java:829)
    at com.avaje.ebeaninternal.server.query.CQueryEngine.findMany(CQueryEngine.java:238)
    at com.avaje.ebeaninternal.server.query.DefaultOrmQueryEngine.findMany(DefaultOrmQueryEngine.java:104)
    at com.avaje.ebeaninternal.server.core.OrmQueryRequest.findList(OrmQueryRequest.java:344)
    at com.avaje.ebeaninternal.server.core.DefaultServer.findList(DefaultServer.java:1469)
    at com.avaje.ebeaninternal.server.core.DefaultServer.findUnique(DefaultServer.java:1236)
    at com.avaje.ebeaninternal.server.querydefn.DefaultOrmQuery.findUnique(DefaultOrmQuery.java:924)
    at com.avaje.ebeaninternal.util.DefaultExpressionList.findUnique(DefaultExpressionList.java:217)
    at me.captain.DispNameChanger.DispNameChanger.onCommand(DispNameChanger.java:103)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:35)
    ... 12 more
Caused by: java.sql.SQLException: [SQLITE_ERROR] SQL error or missing database (no such column: PlayerName)
    at org.sqlite.DB.newSQLException(DB.java:383)
    at org.sqlite.DB.newSQLException(DB.java:387)
    at org.sqlite.DB.throwex(DB.java:374)
    at org.sqlite.NativeDB.prepare(Native Method)
    at org.sqlite.DB.prepare(DB.java:123)
    at org.sqlite.PrepStmt.<init>(PrepStmt.java:42)
    at org.sqlite.Conn.prepareStatement(Conn.java:404)
    at org.sqlite.Conn.prepareStatement(Conn.java:399)
    at org.sqlite.Conn.prepareStatement(Conn.java:383)
    at com.avaje.ebeaninternal.server.lib.sql.PooledConnection.prepareStatement(PooledConnection.java:426)
    at com.avaje.ebeaninternal.server.lib.sql.PooledConnection.prepareStatement(PooledConnection.java:396)
    at com.avaje.ebeaninternal.server.query.CQuery.prepareBindExecuteQuery(CQuery.java:399)
    at com.avaje.ebeaninternal.server.query.CQueryEngine.findMany(CQueryEngine.java:198)
    ... 20 more

I went into the database file myself there definitely is a column called PlayerName.

I think I found the problem. It says that no column called PlayerName is there, and when I rename player_name to PlayerName it says no column called player_name is there. How do I change what values use what columns?

no errors now, but it doesn't save the names ( the columns are now PlayerName, DisplayName, player_name, display_name)

I got it fixed, turns out it was a letter not being capitalized in DNCPersistence :/

EDIT by Moderator: merged posts, please use the edit button instead of double posting.