нашёл такую ошибку в консоли, при попытки другого игрока открыть deluxemenu меню:
[15:00:29 ERROR]: Could not pass event PlayerCommandPreprocessEvent to ChatManager v3.7.7
org.bukkit.event.EventException: null
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[server.jar:git-Spigot-79a30d7-f4830a1]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[server.jar:git-Spigot-79a30d7-f4830a1]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) ~[server.jar:git-Spigot-79a30d7-f4830a1]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) ~[server.jar:git-Spigot-79a30d7-f4830a1]
at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1393) ~[server.jar:git-Spigot-79a30d7-f4830a1]
at net.minecraft.server.v1_12_R1.PlayerConnection.chat(PlayerConnection.java:1317) ~[server.jar:git-Spigot-79a30d7-f4830a1]
at org.bukkit.craftbukkit.v1_12_R1.entity.CraftPlayer.chat(CraftPlayer.java:239) ~[server.jar:git-Spigot-79a30d7-f4830a1]
at me.RockinChaos.itemjoin.item.ItemCommand.dispatchPlayerCommands(ItemCommand.java:390) ~[?:?]
at me.RockinChaos.itemjoin.item.ItemCommand.lambda$sendDispatch$3(ItemCommand.java:307) ~[?:?]
at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:76) [server.jar:git-Spigot-79a30d7-f4830a1]
at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:361) [server.jar:git-Spigot-79a30d7-f4830a1]
at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:739) [server.jar:git-Spigot-79a30d7-f4830a1]
at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [server.jar:git-Spigot-79a30d7-f4830a1]
at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [server.jar:git-Spigot-79a30d7-f4830a1]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [server.jar:git-Spigot-79a30d7-f4830a1]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_312]
Caused by: java.lang.NullPointerException
at me.h1dd3nxn1nja.chatmanager.listeners.ListenerRepeat.onCommand(ListenerRepeat.java:66) ~[?:?]
at sun.reflect.GeneratedMethodAccessor142.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_312]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_312]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[server.jar:git-Spigot-79a30d7-f4830a1]
... 15 more