Cannot provision Let's Encrypt certificate for custom domain (DNS is correct)

Hello,

I can’t provision a Let’s Encrypt certificate for my custom domain
nebo-kremaciya.ru (site: fluffy-gecko-2cb6f9.netlify.app).

“Verify DNS configuration” succeeds, but “Provision certificate” fails every time
with “We could not provision a Let’s Encrypt certificate for your custom domain.”

I verified DNS from public resolvers, everything looks correct:

I removed a stale AAAA record more than 6 hours ago and retried only once or twice since,
so this is not a rate limit or propagation issue.

Could you please check the exact Let’s Encrypt error on your side and provision the
certificate manually? Thank you!