[20:42:12 ERROR]: Could not pass event AsyncPlayerChatEvent to Essentials v2.15.0.56
org.bukkit.event.EventException: null
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:308) ~[spigot-1.13.2.jar:git-Spigot-a1f2566-282dad1]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.13.2.jar:git-Spigot-a1f2566-282dad1]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) [spigot-1.13.2.jar:git-Spigot-a1f2566-282dad1]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:482) [spigot-1.13.2.jar:git-Spigot-a1f2566-282dad1]
	at net.minecraft.server.v1_13_R2.PlayerConnection.chat(PlayerConnection.java:1570) [spigot-1.13.2.jar:git-Spigot-a1f2566-282dad1]
	at net.minecraft.server.v1_13_R2.PlayerConnection.a(PlayerConnection.java:1508) [spigot-1.13.2.jar:git-Spigot-a1f2566-282dad1]
	at net.minecraft.server.v1_13_R2.PacketPlayInChat$1.run(PacketPlayInChat.java:39) [spigot-1.13.2.jar:git-Spigot-a1f2566-282dad1]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_121]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_121]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_121]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_121]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]
Caused by: java.lang.NoClassDefFoundError: de/bananaco/bpermissions/api/CalculableType
	at net.milkbowl.vault.chat.plugins.Chat_bPermissions2.getPlayerPrefix(Chat_bPermissions2.java:97) ~[?:?]
	at net.milkbowl.vault.chat.Chat.getPlayerPrefix(Chat.java:67) ~[?:?]
	at net.milkbowl.vault.chat.Chat.getPlayerPrefix(Chat.java:91) ~[?:?]
	at com.earth2me.essentials.perm.impl.AbstractVaultHandler.getPrefix(AbstractVaultHandler.java:48) ~[?:?]
	at com.earth2me.essentials.perm.PermissionsHandler.getPrefix(PermissionsHandler.java:68) ~[?:?]
	at com.earth2me.essentials.User.getNick(User.java:313) ~[?:?]
	at com.earth2me.essentials.User.getNick(User.java:282) ~[?:?]
	at com.earth2me.essentials.User.setDisplayNick(User.java:342) ~[?:?]
	at com.earth2me.essentials.EssentialsPlayerListener.onPlayerChat(EssentialsPlayerListener.java:102) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:304) ~[spigot-1.13.2.jar:git-Spigot-a1f2566-282dad1]
	... 11 more