Best Answer Kwen, 11 October 2015 - 04:23 PM
The reason why is because the last faction you played with a mod installed no longer exists in the normal un-modded game so it crashes. Two ways to fix it, one either run the modded version and play a faction that does exist in the un-modded game (Rohan, Isengard, Gondor or Mordor) then close down the game and launch the un-modded one. Or you can just delete your skirmish data files from your My Battle for Middle-earth Files folder (the place mods are installed).
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