Can you please check your antivirus protection history to see if it maybe deleted some of the game files accidentally?
It sometimes happens because of the false positive response, and it breaks the game.
If that's the case then you just gotta redownload the game and prohibit antivirus from deleting the files from the game folder.
If all the files are intact and it's not because of the antivirus, can you please send us you log.txt file from the game folder? You can upload it on filetransfer.io and send us a link!