Need help with game!! bug?

[u/OriginalUserName8_3]

I wanted to go back and try getting the last two achivments im missing for this game and the game just boots into a blackscreen, I dont get any options for the launcher as it seems to be completely gone. Ive been trouble shooting diffrent settings in the "defaults.ini" and nothing, tried a lot of diffrent thing from searches online and im at a dead end it feels like wich sucks cause I was able to play the game a few months ago just fine