Yes, it's an original and the art is screened on. But over time, the ink separates from the glass and these ripples and bubbles occur.
The only thing I can think of would be to try and use a syringe needle to inject superglue or some clear adhesive in the cavities and then put some plastic wrap over it and try to press it down with a credit card. But it seems like the artwork would just chip into a a bunch of little pieces if I applied pressure.