Found a fix. Probably save/config data from when i played the game a long time ago. Win + R, type %appdata% and go to LocalLow. Then go to "RynoGG" and delete the folder "DELTATRAVELLER"
Thanks!! I also found that you don't have to delete the whole folder, just the file "config.ini", so all of your save files stay the same and you don't loose them uwu