I've updated the game to 2.3(b9) stable, the update validated the files, I then ran a validate to verify also, then rebooted my machine. I launched Steam, selected 7 Days to Die, pressed play, and the launch select screen I chose the top option, pressed play and got this error:

I then I tried the other two options on the launcher and still get the same error. I tried to google the problem and tried running the game through the local files and run the game as an administrator and it launched fine. I then tried to launch through Steam again but am still getting the same error.
I am at day 189 about to do a horde night and I really hope I don't lose this game session or want to start a new game yet.
Please help!!

I then I tried the other two options on the launcher and still get the same error. I tried to google the problem and tried running the game through the local files and run the game as an administrator and it launched fine. I then tried to launch through Steam again but am still getting the same error.
I am at day 189 about to do a horde night and I really hope I don't lose this game session or want to start a new game yet.
Please help!!