Ok, so I built my first platform and model, then built an engine to put in it. After i built the engine I noticed the platform section had nothing listed in it, but the model was still there. I shut the game down and restarted, and every time I click on sandbox I get the error in the attachment. I have tried using the cleaner and reinstalling 3 times but nothing has fixed it. The scenarios work fine. Thanks
Actually got it taken care of, just deleted the platform file in the automation folder in my documents. It got corrupted somehow.