Why would they even bother to shut down the wave pool because of that? Fish the thing out, keep going.

I just couldn’t think of any other reason you’d care.

Yeah, just leave it. If the issue is that they keep sending you emails, redirect them to your spam/trash. Done.

What wattage is the PSU?

You could try taking the GPU out entirely and see if it gets anywhere. If it runs fine without the GPU it’s probably wanting way more power than your PSU can provide. I doubt that’s the issue for various reasons, but it’s a possibility.