I’m sorry about the frustration when trying to run your prints. I extracted the most recent logs from your unit, and it looks like the top surface of the material may be too close to the printer head for it to accurately measure the material.
Is the material on the crumb tray, or is it being held up using something laser-compatible?
You can print on objects up to 2" thick by removing the crumb tray. However, your Glowforge can’t focus too far down, so you may need to put something laser-compatible underneath your material to lift it up. If you haven’t tried doing this already, raise it until the top surface of your material is between 1.5" and 2" high, measured from the metal plate on the bottom.
Our community has developed some great Tips and Tricks, and this illustrated guide might be just what you need.
Please let us know how it goes!