me.Dunios.NetworkManagerBridgeAPI.exceptions.LanguageMessageNotFoundException: The language with variable: lang_date_format and LanguageID: 2 does not seem to exist
[15:07:40 WARN]:        at me.Dunios.NetworkManagerBridge.spigot.cache.modules.NMCachedLanguages.getMessage(NMCachedLanguages.java:98)
[15:07:40 WARN]:        at me.Dunios.NetworkManagerBridge.spigot.NetworkManagerBridge.getMessage(NetworkManagerBridge.java:277)
[15:07:40 WARN]:        at me.Dunios.NetworkManagerBridge.spigot.listeners.PlayerListener.onDisconnect(PlayerListener.java:94)
[15:07:40 WARN]:        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[15:07:40 WARN]:        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[15:07:40 WARN]:        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[15:07:40 WARN]:        at java.lang.reflect.Method.invoke(Method.java:498)
[15:07:40 WARN]:        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306)
[15:07:40 WARN]:        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
[15:07:40 WARN]:        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502)
[15:07:40 WARN]:        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487)
[15:07:40 WARN]:        at net.minecraft.server.v1_8_R3.PlayerList.disconnect(PlayerList.java:348)
[15:07:40 WARN]:        at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:871)
[15:07:40 WARN]:        at net.minecraft.server.v1_8_R3.NetworkManager.l(NetworkManager.java:314)
[15:07:40 WARN]:        at net.minecraft.server.v1_8_R3.ServerConnection.c(ServerConnection.java:145)
[15:07:40 WARN]:        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:814)
[15:07:40 WARN]:        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374)
[15:07:40 WARN]:        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654)
[15:07:40 WARN]:        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557)
[15:07:40 WARN]:        at java.lang.Thread.run(Thread.java:748)
[15:07:40 ERROR]: Could not pass event PlayerQuitEvent to NetworkManagerBridge v1.9.9
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot.jar:git-Spigot-21fe707-e1ebe52]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-21fe707-e1ebe52]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-21fe707-e1ebe52]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.PlayerList.disconnect(PlayerList.java:348) [spigot.jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:871) [spigot.jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.NetworkManager.l(NetworkManager.java:314) [spigot.jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.ServerConnection.c(ServerConnection.java:145) [spigot.jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:814) [spigot.jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot.jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot.jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot.jar:git-Spigot-21fe707-e1ebe52]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_171]
Caused by: java.lang.NullPointerException
        at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:598) ~[?:1.8.0_171]
        at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:580) ~[?:1.8.0_171]
        at me.Dunios.NetworkManagerBridge.spigot.listeners.PlayerListener.onDisconnect(PlayerListener.java:94) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_171]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_171]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_171]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_171]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot.jar:git-Spigot-21fe707-e1ebe52]
        ... 12 more