Help me please this is driving me crazy!!!!!

I have Dragons IOA Trainer and everytime my park gets really good and everything is going fine I build a rollercoaster and I go to test it and it says that I can't test it because its unable to create enough cars and no more people come in my park. What should I do.

I thas nothing to do with the trainer. I've had that happen on the Megaworld Park scenario, and I couldn't do anything. I think the game just has the maximum number of sprites on the map that it can have, so you can't change a thing about it.

-------------
Cyclops. 1900 feet of CCI goodness.