Как сменить карту на серве

[EdVice]

бить не кого нем могу
и сервер выдает такую ошибку:
[WARNING] Can't keep up! Did the system time change, or is the server overloaded?
[SEVERE] Unexpected exception
java.lang.ArrayIndexOutOfBoundsException: -8
at mw.h(SourceFile:275)
at mw.a(SourceFile:390)
at mw.a(SourceFile:346)
at gd.b(SourceFile:392)
at gd.e(SourceFile:453)
at lg.G_(SourceFile:85)
at gd.a(SourceFile:1348)
at go.a(SourceFile:43)
at gd.g(SourceFile:1324)
at gd.f(SourceFile:1250)
at net.minecraft.server.MinecraftServer.w(SourceFile: 429)
at net.minecraft.server.MinecraftServer.run(SourceFil e:356)
at dm.run(SourceFile:490)