Does this happen with all mods or just NCS22? If it is just one mod I would say that you have a wonky carfile in there somewhere. In most cases if the carfile is wrong, it simply won't show up in your list. However if your player car is selected as one of these cars, then it may crash. You might double check to make sure that all cars in your cars folder have the same physics with no spaces (filename.cup.car for example). Also, I can't remember the character limit for the carfile name, but make sure it isn't too long. And finally, avoid extra periods (such as 9.chase.elliott.cup.car, you want something like 9_chase_elliott.cup.car), and avoid special characters (!@#$%-/?\). You can use underscore ( _ ) as long as you don't go crazy with it.
If it is all mods, then it sounds like maybe your player file has been corrupted. Doing a fresh install would normally take care of that, but if you are copy/pasting from a corrupted source, then it won't work.
