IR Thermos 1.7.10 Error

[Sirse]

When i type world reset DIM1 i get next error:
[14:22:43] [Server thread/ERROR]: null org.bukkit.command.CommandException: Unhandled exception executing command 'ir' in plugin InstantReset v1.12-antony at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[PluginCommand.class:1.7.10-1614.58] at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) ~[SimpleCommandMap.class:1.7.10-1614.58] at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:740) ~[CraftServer.class:1.7.10-1614.58] at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:1370) [nh.class:?] at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:1107) [nh.class:?] at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(C01PacketChatMessage.java:38) [ir.class:?] at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(C01PacketChatMessage.java:53) [ir.class:?] at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:245) [ej.class:?] at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:181) [nc.class:?] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:1023) [MinecraftServer.class:?] at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:432) [lt.class:?] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:841) [MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:693) [MinecraftServer.class:?] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25] Caused by: java.lang.IllegalArgumentException: Could not get provider type for dimension 12, does not exist at net.minecraftforge.common.DimensionManager.getProviderType(DimensionManager.java:178) ~[DimensionManager.class:1.7.10-1614.58] at net.minecraftforge.common.DimensionManager.createProviderFor(DimensionManager.java:483) ~[DimensionManager.class:1.7.10-1614.58] at net.minecraft.world.WorldProvider.func_76570_a(WorldProvider.java:160) ~[aqo.class:?] at net.minecraft.world.WorldServer.<init>(WorldServer.java:162) ~[mt.class:?] at org.cyberiantiger.minecraft.instantreset.libnbt.unsafe.v1_7_R4.InstanceTools.createInstance(InstanceTools.java:85) ~[?:?] at org.cyberiantiger.minecraft.instantreset.InstantReset.loadWorld(InstantReset.java:160) ~[?:?] at org.cyberiantiger.minecraft.instantreset.InstantReset.resetWorld(InstantReset.java:217) ~[?:?] at org.cyberiantiger.minecraft.instantreset.ResetSubCommand.onCommand(ResetSubCommand.java:43) ~[?:?] at org.cyberiantiger.minecraft.instantreset.InstantReset.onCommand(InstantReset.java:138) ~[?:?] at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[PluginCommand.class:1.7.10-1614.58] ... 13 more