Hello @flexthecopycat and welcome to Discussions. Sorry to hear you can't launch the game and verifying game files did not help to solve the issue.
You have mentioned you are receiving the warning, can you provide the screenshot of this warning or any errors you are getting?
Note that they can be a maximum of 2,000 pixels in length, 2,000 pixels in height, or 2MB in filesize. Alternatively, they can be uploaded to any other website of your choice, and a link sent to us here on the forum thread.
Also, please run through the rest of ...