Thanks for reporting back! Glad to see the old errors were resolved. You are running into a far higher amount of errors than any of our other users on setup so there might be some step missed during the setup process (perhaps when the expansion plugins were put in) that is causing these errors. We are having some issues on our end replicating this latest set of issues so we are going to suggest a different solution.
We are going to recommend sending in a copy of your demo project to our email (myth.atelier@gmail.com). Save your copy of the demo project to a compressed folder, upload it to a service like GDrive/Dropbox/MEGA and send the share link via the email. Please include your username(wingieboi) in the subject line so we know its your support ticket. We will take a look at what is going on in the project. send a fixed copy back and let you know what caused the issues so you can avoid those in the future.