Ive contacted support, has anyone had a crash which corrupted the save file? i really dont want to start the game over again as i was almost finished and had done alot of farming in the game.

what did they answer you? how did you get in touch with them? The exact same thing happened to me and I don't know what to do. He had already been in the game for many hours. What a disastrous save system.

If your savefile is corrupted and you have another completed campaign in save slot 0 or you can start
a new campaign, then save and exit
1-copy the content of the new/old save file file
2- paste into the corrupted file. My corrupted file was save slot 1-open using notepad
3-then change everything that says save slot 0 into save slot 1 file
4-delete the campaign files you don't need
5-save and load. It should work...at least it worked for me.