Snap Auto SSL Failing

Snap Auto SSL failing to work. The domain using is working on DNS as seen from the instructions and works fine over HTTP and self-signed, but when enabling it to do the Let’sEncrypt auto option it fails with this in the logs. The domain is about 12 hours old, but DNS works for users.

Anyone know how to fix this issue with it rate limiting us… even from the very first use it done this… or do I have to wait more than 24 hours for Let’s Encrypt to see the DNS?? - Using Ubuntu with RocketChat installed from snap.
thanks

ERROR: ----------

Nov 02 14:03:14 ip-XXXXXX rocketchat-server.rocketchat-caddy[3860]: 2020/11/02 18:03:14 failed to obtain certificate: acme: error: 429 :: POST :: https://acme-v02.api.letsencrypt.org/acme/new-order :: urn:ietf:params:acme:error:rateLimited :: Error creating new order :: too many failed authorizations recently: see https://letsencrypt.org/docs/rate-limits/, url:

Fixed: Found an issue where Caddy has known issues with certain version combo’s. Ended up doing it manually with Let’s Encrypt and worked straight away. (FYI - all latest versions on CADDY)

Could you provide step-by-step how did you do it?