[Lobby-1]Caused by: org.bukkit.plugin.messaging.ChannelNotRegisteredException: Attempted to send a plugin message through the unregistered channel `BungeeCord'.
[14:20:35/INFORMATION]:  [Lobby-1]    at org.bukkit.plugin.messaging.StandardMessenger.validatePluginMessage(StandardMessenger.java:482) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
[14:20:35/INFORMATION]:  [Lobby-1]    at org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer.sendPluginMessage(CraftPlayer.java:1039) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
[14:20:35/INFORMATION]:  [Lobby-1]    at at.LukasHDYT.listener.LobbyItems.sendToBungee(LobbyItems.java:48) ~[?:?]
[14:20:35/INFORMATION]:  [Lobby-1]    at at.LukasHDYT.listener.LobbyItems.onLobbySwitch(LobbyItems.java:286) ~[?:?]
[14:20:35/INFORMATION]:  [Lobby-1]    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
[14:20:35/INFORMATION]:  [Lobby-1]    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_121]
[14:20:35/INFORMATION]:  [Lobby-1]    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_121]
[14:20:35/INFORMATION]:  [Lobby-1]    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_121]
[14:20:35/INFORMATION]:  [Lobby-1]    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
[14:20:35/INFORMATION]:  [Lobby-1]    ... 15 more