EKWB GPU block leak

Had a block on my Zotac Trinity 3080 for 2 years now. Worked fine till today PC wouldn't post. Took PC apart and noticed fluid on bottom of the case. Found more fluid droplets on underside of GPU block.

Took GPU block apart and there was fluid outside the o-rings. There was also an area where the nickel had turned a copper colour and the plexi glass green (see pics). When I rubbed at the plexi with a microfiber cloth to clean it, small shards of plexi glass came off.

Tested my PSU and motherboard and they work fine, pretty sure the GPU is bricked though given the amount of fluid in it that had spilled.

I haven't had time to test the GPU separately yet as it's 3am and I only just got cleaning up the mess, any advice on how to quickly do this without taking off the block or redoing the whole PC would be appreciated. I've been out the loop with PC building due to illness for the last 2 years so I'm a bit rusty on troubleshooting.

If anyone has any advice on what's happened to the block, and what recourse I'd have if any should it be that the block has failed, I'd appreciate it immensely.

Apologies if the post is poorly written, I've just spent the last 5 hours tearing apart my most valued possession thinking the whole thing was bricked, I'm a little stressed to say the least.