I just commented out the particle effects, but no luck, I still get the same error when I try to run it on the Xcode simulator.
To create the particle effects, I used these instructions: https://coronalabs.com/blog/2014/03/25/tutorial-using-particle-designer-in-corona/
The only other thing I can think of that comes close to a shader is setting the alpha when calling object:setFillColor, but I doubt that is the culprit.