I’d like to see a log file from a failed renewal that failed for a reason other than this rate limit. A log from a successful renewal won’t show what the problem was.
It’s actually a little strange to think that renewal attempts are happening now at all, because normally
certbot renew won’t even try to renew until 30 days prior to the cert’s expiry. That would be on August 19. Since it’s not August 19, I’m not sure why
certbot renew has been doing anything at all.
If you run
certbot certificates, do you see any duplicative certificates that cover this domain name and that you didn’t intend to have? That wouldn’t explain the
too many currently pending authorizations error itself but it could explain why
certbot renew was trying to renew your certificate recently.