Unable to save/load data when “save” directory is missing. 

I tried to figure out for days what made some games unable to save data. Turns out it was caused by a missing **save/** directory in the game structure, so _fix_local_storage_ fails and throws error. 

I recommend to change the code to check if directory exists and create it if it doesn’t.
For now, a quick fix is to manually create **save/**.