I have just made all the new screens for a new kind of car. So I loaded its folder into the RideMaker and filled out the information and it closed down on me. So I tried again, and again, then I noticed this was a problem

Can Anyone Tell Me How To Fix This Please?

Have you tried contacting Buggy? His site is listed in Rohn Starr's Object Creator thread. He might be able to help you with this problem. You might also try contacting Amazing Earl. I won't guarantee that you'll get a response any time soon, but it's always worth the try.