I followed the suggested steps and was able to download/update the game
But it still gave me the "Unable to complete version check" and a new error "A system error has occurred: -2146697211, HTTPS system error"
After some tries a i was able to login and get to the starting screen but it got stuck on the after i pressed "start", after a while it gave a "lobby server connection error, 2002" and closed the game, now im stuck again on those first two errors

I did play the game normally last week, and haven't changed anything on my pc or network