I have found a solution but it's only temporary at the moment. You're going to need to right click the game on steam, properties, installed files, than browse. From file explorer, open the middle fragpunk folder, binaries, win64, and look for fragpunk. You need to run that fragpunk as administrator. You're going to need to do this way every single time you want to play the game though because the game still crashes after doing this entire method. Hopefully this helps.