You characters are automatically saved to your own account. so it doesn't matter cause your characters wont get deleted unless you do so in game. but if its just a character stuck in a map that closes your game down, then try to go to the Character reset and you can "reset home" which will take them to there saved place. But chances are that if the game is constantly closing on you, then you have to uninstall everything so it looks like you never had FH in your computer, and re-install it again. Now you may lose your maps, items, and mass masking you already have on there, but you will be able to play the game. Cleaning out your export will probably mess up the public maps that are already there. i suggest you keep your maps in separate folders so you wont lose them in future occurrence such as this.