It looks like it appears to be the same message, but it also mentioned about executing ringconfig.cfg. It may work if you delete it, but if that doesn't work, that means that your save data is
hard corrupted. You will have to start over from the beginning. (Sorry
)
But be sure to move (cut) your corrupted profile and data file to somewhere else to keep it in case you found out a way to recover it again. After that, launch the game and it should work again.
You will have to play the tutorial again, but it can be skipped by driving behind to find a tunnel or using the password
gaster
After that, if you had any unlocks, read passwords.txt that is included in the game files to unlock them back.
If you have any prizes (those earned ufo stages) that you got in cups, you will have to earn them again because there is no password that unlocks them back.
Also, remember to always take backups of your save files even if the game backs up for you itself. Don’t play the game during power outages because if your power turns off during the game, it can cause corrupted data. Also, if you are gonna use these addons again, BACKUP YOUR DATA FIRST. After you do that, try testing them again. If they damage it, You probably have an incorrectly downloaded add on file. If it is downloaded correctly and still damages it, contact the author of those addons about them.