When you cleaned it, did you open the lid fully upright? (90° angle?)
It’s possible when that happens to pull one of the lid cables too tight against a little metal lip behind it, and that can cause the wires inside to break. If that’s what happened, Glowforge can look at your logs to see it, and get you a replacement cable.
But in order to eliminate something as simple as an open connector somewhere, run through the checks outlined here and let them know what you find:
If those look okay, just wait to hear from Support.