It looks like the main problem there is with writing files when you try a game. The main 2 reasons that might be the case would be that your machine is out of disk space, or that your user account does not have permissions set up up properly on the folder you're using.
If it's a disk issue, I'd suggest looking at ways to clear up disk space. Deleting old games, going through the regular windows disk manager stuff, or googling for other disk management tips are your best bet.
If your machine does not have disk issues, then you need to make sure that the program has access to the data folder you listed above, and that your permissions are set properly. You may need to set up the game to run as an admin or change permissions on the OOTP data folder.
If none of that works, or if you are having issues with these steps, it might be worth it to file a support ticket (
https://support.ootpdevelopments.com/portal/home), where the support team can potentially provide other tips too that they have learned from others who have had similar issues.