```[2016-12-05 12:30:56] Exiting (normal) because of exception java.lang.IllegalArgumentException
[2016-12-05 12:30:56] java.lang.IllegalArgumentException
[2016-12-05 12:30:56] at obfuscated.ayi.remove(SourceFile:81)
[2016-12-05 12:30:56] at obfuscated.ayh.a(SourceFile:699)
[2016-12-05 12:30:56] at obfuscated.ayh.b(SourceFile:728)
[2016-12-05 12:30:56] at obfuscated.ayd.a(SourceFile:118)
[2016-12-05 12:30:56] at obfuscated.aya.a(SourceFile:188)
[2016-12-05 12:30:56] at obfuscated.axB.a(SourceFile:169)
[2016-12-05 12:30:56] at org.schema.game.server.data.Galaxy.a(SourceFile:486)
[2016-12-05 12:30:56] at org.schema.game.common.data.world.Universe.update(SourceFile:1184)
[2016-12-05 12:30:56] at org.schema.game.server.controller.GameServerController.update(SourceFile:1285)
[2016-12-05 12:30:56] at org.schema.schine.network.server.ServerController.run(SourceFile:274)
[2016-12-05 12:30:56] at java.lang.Thread.run(Unknown Source)```