Every time i try to save or load, the screen just freezes on black for about a second and message pops up saying that request for saving has been denied!

Never had any problems with this game - so i went on to completely delete everything "survivalist" related off my pc and reinstall the game, WORKED, for first session, an hour later i came back to the game and tried to load, gives me same pop up!

365 hours on record and no longer able to save...
Any ideas what's causing this?