Unplug the machine first.
Use paper towels lightly moistened with a 50/50 solution of white vinegar and water. Be careful around the cables, and don’t open the lid fully upright.
Let it dry overnight before firing it up again.
Hate to tell you this, but if it made that much of a mess on the glass and tube, it likely made one hell of a mess on your exhaust fan too, and sticky gourd is not something that’s going to do any good to your fan. You are going to need to clean that. Probably the air assist fan too.
Instructions for cleaning the exhuast fan:
Instructions for cleaning the air assist fan:
And thank you for posting this…I won’t be cutting a pumpkin up except with a sharp knife.