[Async Chat Thread - #8/ERROR]: Could not pass event AsyncPlayerChatEvent to VentureChat v2.13.1 org.bukkit.event.EventException: null at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:308) ~[spigot.jar:git-Spigot-2474d93-e693496] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-2474d93-e693496] at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) [spigot.jar:git-Spigot-2474d93-e693496] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:482) [spigot.jar:git-Spigot-2474d93-e693496] at net.minecraft.server.v1_13_R2.PlayerConnection.chat(PlayerConnection.java:1570) [spigot.jar:git-Spigot-2474d93-e693496] at net.minecraft.server.v1_13_R2.PlayerConnection.a(PlayerConnection.java:1508) [spigot.jar:git-Spigot-2474d93-e693496] at net.minecraft.server.v1_13_R2.PacketPlayInChat$1.run(PacketPlayInChat.java:39) [spigot.jar:git-Spigot-2474d93-e693496] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_181] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_181] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_181] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_181] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181] Caused by: java.lang.NoClassDefFoundError: com/gmail/nossr50/util/player/UserManager at com.xmarinusx.papi.expansion.mcmmo.McMMOExpansion.onPlaceholderRequest(McMMOExpansion.java:61) ~[?:?] at me.clip.placeholderapi.PlaceholderHook.onRequest(PlaceholderHook.java:38) ~[?:?] at me.clip.placeholderapi.PlaceholderAPI.setPlaceholders(PlaceholderAPI.java:237) ~[?:?] at me.clip.placeholderapi.PlaceholderAPI.setBracketPlaceholders(PlaceholderAPI.java:385) ~[?:?] at mineverse.Aust1n46.chat.utilities.Format.convertPlaceholders(Format.java:165) ~[?:?] at mineverse.Aust1n46.chat.utilities.Format.convertToJson(Format.java:110) ~[?:?] at mineverse.Aust1n46.chat.listeners.ChatListener.onAsyncPlayerChatEvent(ChatListener.java:688) ~[?:?] at sun.reflect.GeneratedMethodAccessor210.invoke(Unknown Source) ~[?:?] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_181] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_181] at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:304) ~[spigot.jar:git-Spigot-2474d93-e693496] ... 11 more