You can buy a replacement https://www.amazon.com/dp/B0899ZF9QW/
A PEI sheet (better, but prints may stick even stronger) https://www.amazon.com/dp/B08L39BFVJ/
Or a glass bed (not magnetic) https://www.amazon.com/dp/B08CXLLCH4/
I don't know if any of the links are good or counterfeit...
I love it.
UniTak3D PEI Magnetic Build... https://www.amazon.com/dp/B08L39BFVJ?ref=ppx_pop_mob_ap_share
I did pick up a double-sided PEI magnetic spring plate for my E5 on Amazon, but haven't tested it yet.
https://www.amazon.com/gp/product/B08L39BFVJ/
I previously had the stock Ender glass, then I bought a sheet of borosilicate and applied Gizmo Dorks' PEI adhesive sheet, but it only worked well for the very first print. I tried everything to get it to work, followed all the recommendations from the seller and other buyers; scuffed the surface with 3M scotchpad, bought 99% isopropyl, etc. Nothing gave me that first-time adhesion again and my prints were lifting. Glue stick sort of helped, but this was still unacceptable. Amazon comp'd me for that purchase, thus I picked up the one I mentioned above. Not holding my breath, but it's worth a shot for ABS.
My aluminum bed has a noticeable sag in the center, so I'm going to miss the glass, but at least I have BL Touch now. I don't have BLT on my Coreception and don't really want to install the magnetic sticker directly to the heated bed.
I bought the one available in my country on Amazon (France) and it was the Unitak3D textured sheet. As I commented on another topic here it is thicker and more textured than the stock one.
I also seen someone talking about the Princore brand who has plenty of choice and interesting plates. Unfortunately I was in the rush so I went with the next day delivery from Amazon and did not have the chance to order and experiment with these bad boys.