Failed to load

I played the game yesterday. It was laggy in the menus, the gameplay freezes and now this morning I tried to play. It said that I needed to install anti cheat. I did… MULTIPLE TIMES. I have now tried to play now (evening) and I load on, and it says “failed to load” I can’t even load my save that I had. Please, someone help. Paid £80 for a game that has failed to work and my early access week really is getting out to good use.