So I've been working on a game for the past couple weeks and I have the UPP Parallax Pro Plugin and its been working great...until I finally tried to save my game. It gives me a TypeError: "Cannot set Property 'Sprite' of undefined". After some testing I discovered that the plugin was causing the problem. If it runs even once in the game it errors while saving. I'm confused because it seems this is a well reviewed plugin. Any help is appreciated as I do not want to redo all my overlays and parallaxes with a different plugin.