Board Thread:Bug Reports/@comment-31235830-20170205111852/@comment-80.215.210.193-20170205215610

These are chunk coordinates. Use this converter for example to get region coordinates.

You can just move this region out of the DIM100 or MiddleEarth directory. It will be regenerated.

You might also have to move the players outside of this region or edit the LOTR file saying there's a dwarven mine at this location, but I don't think so.

You should use the Minecraft Region Manager plugin's verifyregion command to test if other region files are damaged.

Which version of Thermos have you tried? Build 57, build 58, other? Anyway, too bad the Thermos project is dead too.