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java.lang.ArrayIndexOutOfBoundsException: -5	at undefined.b.a(SourceFile:248)	at undefined.act.a(SourceFile:2591)	at net.minecraft.server.MinecraftServer.t(SourceFile:458)	at net.minecraft.server.MinecraftServer.s(SourceFile:398)	at undefined.bnn.s(SourceFile:124)	at	at