Помогите Ошибка при тп в мир

[22:59:05 ERROR]: Could not pass event PlayerJoinEvent to CHORUS_VIRUS v1.0
org.bukkit.event.EventException: null
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at net.minecraft.server.v1_12_R1.PlayerList.onPlayerJoin(PlayerList.java:346) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at net.minecraft.server.v1_12_R1.PlayerList.a(PlayerList.java:166) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at net.minecraft.server.v1_12_R1.LoginListener.b(LoginListener.java:159) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at net.minecraft.server.v1_12_R1.LoginListener.e(LoginListener.java:57) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at net.minecraft.server.v1_12_R1.NetworkManager.a(NetworkManager.java:233) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at net.minecraft.server.v1_12_R1.ServerConnection.c(ServerConnection.java:140) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:845) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_171]
Caused by: java.lang.NullPointerException
at plugin.Main.onJoin(Main.java:79) ~[?:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_171]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_171]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_171]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_171]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
... 14 more

 

У тебя мир lobby наверное null. Думаю он у тебя не загружен. Загрузить можно с помощью

Код:

new WorldCreator("lobby").createWorld();