My server started lagging (fps-wise for me) and i reset it. When it went back on, same thing was happening and then this popped up in my console, and everyone was kicked. (warning:very long code, I just don't know how to put a spoiler on-mod can fix if u want lol) Code: 12:04:00 [SEVERE] Could not pass event BlockIgniteEvent to CoreProtect org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:303) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav a:62) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j ava:459) at net.minecraft.server.BlockFire.a(BlockFire.java:146) at net.minecraft.server.World.a(World.java:2409) at net.minecraft.server.World.doTick(World.java:1757) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:538) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) Caused by: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Unknown Source) at com.minerealm.core.CoreProtectionBlockListener.onBlockIgnite(CoreProt ectionBlockListener.java:63) at sun.reflect.GeneratedMethodAccessor16.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:301) ... 8 more 12:04:00 [SEVERE] Could not pass event BlockPistonExtendEvent to CoreProtect org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:303) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav a:62) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j ava:459) at net.minecraft.server.BlockPiston.g(BlockPiston.java:75) at net.minecraft.server.BlockPiston.doPhysics(BlockPiston.java:52) at net.minecraft.server.World.k(World.java:520) at net.minecraft.server.World.applyPhysics(World.java:500) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:53) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.ja va:295) at net.minecraft.server.World.k(World.java:520) at net.minecraft.server.World.applyPhysics(World.java:500) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:53) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.ja va:295) at net.minecraft.server.World.k(World.java:520) at net.minecraft.server.World.applyPhysics(World.java:500) at net.minecraft.server.World.update(World.java:461) at net.minecraft.server.World.setTypeIdAndData(World.java:445) at net.minecraft.server.BlockDiode.a(SourceFile:66) at net.minecraft.server.World.a(World.java:2409) at net.minecraft.server.World.doTick(World.java:1757) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:538) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) Caused by: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Unknown Source) at com.minerealm.core.CoreProtectionBlockListener.onBlockPistonExtend(Co reProtectionBlockListener.java:273) at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:301) ... 22 more 12:04:00 [SEVERE] Could not pass event BlockPistonExtendEvent to CoreProtect org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:303) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav a:62) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j ava:459) at net.minecraft.server.BlockPiston.g(BlockPiston.java:75) at net.minecraft.server.BlockPiston.doPhysics(BlockPiston.java:52) at net.minecraft.server.World.k(World.java:520) at net.minecraft.server.World.applyPhysics(World.java:495) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:53) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.ja va:295) at net.minecraft.server.World.k(World.java:520) at net.minecraft.server.World.applyPhysics(World.java:495) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:53) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.ja va:295) at net.minecraft.server.World.k(World.java:520) at net.minecraft.server.World.applyPhysics(World.java:495) at net.minecraft.server.World.update(World.java:461) at net.minecraft.server.World.setTypeIdAndData(World.java:445) at net.minecraft.server.BlockDiode.a(SourceFile:66) at net.minecraft.server.World.a(World.java:2409) at net.minecraft.server.World.doTick(World.java:1757) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:538) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) Caused by: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Unknown Source) at com.minerealm.core.CoreProtectionBlockListener.onBlockPistonExtend(Co reProtectionBlockListener.java:273) at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:301) ... 22 more 12:04:00 [SEVERE] Could not pass event BlockBreakEvent to CoreProtect org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:303) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav a:62) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j ava:459) at net.minecraft.server.ItemInWorldManager.breakBlock(ItemInWorldManager .java:220) at net.minecraft.server.ItemInWorldManager.dig(ItemInWorldManager.java:1 05) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:537) at net.minecraft.server.Packet14BlockDig.handle(SourceFile:43) at net.minecraft.server.NetworkManager.b(NetworkManager.java:229) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:113) at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:7 8) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:551) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) Caused by: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Unknown Source) at com.minerealm.core.CoreProtectionBlockListener.onBlockBreak(CoreProte ctionBlockListener.java:617) at sun.reflect.GeneratedMethodAccessor54.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:301) ... 12 more 12:04:00 [SEVERE] Could not pass event BlockIgniteEvent to CoreProtect org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:303) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav a:62) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j ava:459) at net.minecraft.server.BlockFire.a(BlockFire.java:146) at net.minecraft.server.World.a(World.java:2409) at net.minecraft.server.World.doTick(World.java:1757) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:538) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) Caused by: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Unknown Source) at com.minerealm.core.CoreProtectionBlockListener.onBlockIgnite(CoreProt ectionBlockListener.java:63) at sun.reflect.GeneratedMethodAccessor16.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:301) ... 8 more 12:04:00 [SEVERE] Could not pass event BlockIgniteEvent to CoreProtect org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:303) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav a:62) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j ava:459) at net.minecraft.server.BlockFire.a(BlockFire.java:146) at net.minecraft.server.World.a(World.java:2409) at net.minecraft.server.World.doTick(World.java:1757) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:538) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) Caused by: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Unknown Source) at com.minerealm.core.CoreProtectionBlockListener.onBlockIgnite(CoreProt ectionBlockListener.java:63) at sun.reflect.GeneratedMethodAccessor16.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:301) ... 8 more 12:04:00 [SEVERE] Could not pass event BlockPistonExtendEvent to CoreProtect org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:303) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav a:62) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j ava:459) at net.minecraft.server.BlockPiston.g(BlockPiston.java:75) at net.minecraft.server.BlockPiston.doPhysics(BlockPiston.java:52) at net.minecraft.server.World.k(World.java:520) at net.minecraft.server.World.applyPhysics(World.java:497) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:53) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.ja va:295) at net.minecraft.server.World.k(World.java:520) at net.minecraft.server.World.applyPhysics(World.java:500) at net.minecraft.server.BlockRedstoneWire.g(BlockRedstoneWire.java:53) at net.minecraft.server.BlockRedstoneWire.doPhysics(BlockRedstoneWire.ja va:295) at net.minecraft.server.World.k(World.java:520) at net.minecraft.server.World.applyPhysics(World.java:500) at net.minecraft.server.World.update(World.java:461) at net.minecraft.server.World.setTypeIdAndData(World.java:445) at net.minecraft.server.BlockDiode.a(SourceFile:66) at net.minecraft.server.World.a(World.java:2409) at net.minecraft.server.World.doTick(World.java:1757) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:538) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) Caused by: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Unknown Source) at com.minerealm.core.CoreProtectionBlockListener.onBlockPistonExtend(Co reProtectionBlockListener.java:273) at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:301) ... 22 more 12:04:00 [SEVERE] Could not pass event BlockBreakEvent to CoreProtect org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:303) at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav a:62) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j ava:459) at net.minecraft.server.ItemInWorldManager.breakBlock(ItemInWorldManager .java:220) at net.minecraft.server.ItemInWorldManager.dig(ItemInWorldManager.java:1 05) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:537) at net.minecraft.server.Packet14BlockDig.handle(SourceFile:43) at net.minecraft.server.NetworkManager.b(NetworkManager.java:229) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:113) at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:7 8) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:551) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) Caused by: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Unknown Source) at com.minerealm.core.CoreProtectionBlockListener.onBlockBreak(CoreProte ctionBlockListener.java:617) at sun.reflect.GeneratedMethodAccessor54.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:301) ... 12 more 12:04:00 [SEVERE] java.lang.OutOfMemoryError: unable to create new native thread 12:04:00 [SEVERE] at java.lang.Thread.start0(Native Method) 12:04:00 [SEVERE] at java.lang.Thread.start(Unknown Source) 12:04:00 [SEVERE] at net.minecraft.server.NetworkManager.a(NetworkManager. java:185) 12:04:00 [SEVERE] at net.minecraft.server.NetServerHandler.a(NetServerHand ler.java:944) 12:04:00 [SEVERE] at net.minecraft.server.Packet255KickDisconnect.handle(S ourceFile:24) 12:04:00 [SEVERE] at net.minecraft.server.NetworkManager.b(NetworkManager. java:229) 12:04:00 [SEVERE] at net.minecraft.server.NetServerHandler.a(NetServerHand ler.java:113) 12:04:00 [SEVERE] at net.minecraft.server.NetworkListenThread.a(NetworkLis tenThread.java:78) 12:04:00 [SEVERE] at net.minecraft.server.MinecraftServer.w(MinecraftServe r.java:551) 12:04:00 [SEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftSer ver.java:449) 12:04:00 [SEVERE] at net.minecraft.server.ThreadServerApplication.run(Sour ceFile:492) 12:04:00 [SEVERE] Unexpected exception java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Unknown Source) at net.minecraft.server.NetworkManager.a(NetworkManager.java:185) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:944) at net.minecraft.server.Packet255KickDisconnect.handle(SourceFile:24) at net.minecraft.server.NetworkManager.b(NetworkManager.java:229) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:113) at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:7 8) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:551) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) > Can I have a reason for this problem? Is there a fix? I know CoreProtect isnt for 1.2.5 but it is supported for bukkit builds 1.2.4 and 1.2.5 is only bug fixes...