Oof. It looks like you need to recalibrate your z height. Your print head went pretty deep there.
I'm not the biggest 3D printer person, but that looks like it's just copper or something? It could just be a heat transfer layer to even out the heat distribution. If so, you should be fine. That area may come out a bit warped at worst, but the damage seems small. Do wait for more responses maybe, as I am not an expert.
You could also try printing again with the plate installed and see what happens. They do sell replacement parts online too.
The part where you have to search the sunken ship while being chased by the diving suit monster gave me a straight up panic attack, lol.