Have your tried disabling your antivirus program or whitelist Prehistoric_Kingdom.exe. ?
Sometimes an antivirus program on your PC can flag and delete executable files because the program thinks the files are a virus. If this is the case, then you should be able to restore the files and add an exception to prevent it from deleting the files and causing the game to crash.
Hope this helps!
If the issue persists, you can view our issue tracker page to check any existing bugs and report any issues. You should be able to submit issue tickets as long as you create a git account:
https://github.com/PrehistoricKingdom/feedback/issues- Rosie (PK Community Manager)