Main module for script loader not working?

I made a script loader, but there's one thing it can't do and that's be required by another player in a totally different game. So I made a module script called "MainModule" and then I made the GUI a child of the module script and uploaded it to roblox and turned on allow copying because I think you have to do that, but I'm not too sure. Anyways I copied the asset id and tested it but it doesn't work! Did i do something wrong or am I suppose to take more steps? I don't really have a script to show as they all work fine it's just this part that I'm stuck on.