Problem/Bug ClanSystem 1.12.2

Plugin not working ClanSystem 1.12.2.Here is the log:
[ClanSystem] Task #20 for ClanSystem v1.1.5 generated an exception
java.lang.NoClassDefFoundError: net/md_5/bungee/api/chat/BaseComponent
at de.CodingAir.ClanSystem.ClanSystem$1.run(ClanSystem.java:91) ~[?:?]
at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:58) ~[12.jar:git-Bukkit-e60fc34]
at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:360) [12.jar:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:690) [12.jar:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:371) [12.jar:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:651) [12.jar:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:555) [12.jar:git-Bukkit-e60fc34]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_45]
Caused by: java.lang.ClassNotFoundException: net.md_5.bungee.api.chat.BaseComponent
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_45]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:128) ~[12.jar:git-Bukkit-e60fc34]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:76) ~[12.jar:git-Bukkit-e60fc34]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_45]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_45]
... 8 more

 

But there is something working with Placeholderapi?

 

can you recommend a plugin that works with placeholderapi and infoboard?

 

To infoboard displayed the name of the clan

 

Then it is better to switch to Spigot?

 

Well I put the plugin MultiClan 2.0 but it also does not work.

 

[MultiClan] Plugin MultiClan v2.0.7 generated an exception while executing task 59

 

https://pastebin.com/K7HW6fVe