Bed coating took off

[bh26]

Hi!
After a very common print I noticed a blank part on the bed.
Looking closer I found that not only the coating went off and was stuck to the printed object but even part of the glass was coming with it. (see pictures and videos attached).
What could happen since this is a printer that I purchased just about a year ago, and how to get a replacement?

thanks
https://drive.google.com/file/d/1DMV20k4oOg1LAVzRl788nWNG9PzRMoxW/view?usp=sharing
Bernard