Failed to obtain SSL for

i can’t get the SSL

"Failed to obtain SSL for : "

my website got www.example.com SSL.

i tried this “wget -O - https://get.acme.sh/ | sh” but not worked for me…

log just like this
"
[05.23.2020_12-46-15] Trying to obtain SSL for: mydomain.com and: www.mydomain.com
[05.23.2020_12-46-15] /root/.acme.sh/acme.sh --issue -d mydomain.com -d www.mydomain.com --cert-file /etc/letsencrypt/live/mydomain.com/cert.pem --key-file /etc/letsencrypt/live/mydomain.com/privkey.pem --fullchain-file /etc/letsencrypt/live/mydomain.com/fullchain.pem -w /home/mydomain.com/public_html --force
[05.23.2020_12-46-16] Failed to obtain SSL for: mydomain.com and: www.mydomain.com
[05.23.2020_12-46-16] Trying to obtain SSL for: mydomain.com
[05.23.2020_12-46-17] Failed to obtain SSL, issuing self-signed SSL for: mydomain.com
[05.23.2020_12-46-18] Self signed SSL issued for mydomain.com."

same error.

[06.01.2020_02-00-03] SSL exists for mail.site.bemkt.com.br. Checking if SSL will expire in 15 days…
[06.01.2020_02-00-03] SSL exists for mail.site.bemkt.com.br and is not ready to renew, skipping…
[06.01.2020_02-02-39] User admin does not have CoudFlare configured.
[06.01.2020_02-04-10] Trying to obtain SSL for: bemkt.com.br and: www.bemkt.com.br
[06.01.2020_02-04-10] /root/.acme.sh/acme.sh --issue -d bemkt.com.br -d www.bemkt.com.br --cert-file /etc/letsencrypt/live/bemkt.com.br/cert.pem --key-file /etc/letsencrypt/live/bemkt.com.br/privkey.pem --fullchain-file /etc/letsencrypt/live/bemkt.com.br/fullchain.pem -w /home/bemkt.com.br/public_html --force
[06.01.2020_02-04-11] Failed to obtain SSL for: bemkt.com.br and: www.bemkt.com.br
[06.01.2020_02-04-11] Trying to obtain SSL for: bemkt.com.br
[06.01.2020_02-04-13] Failed to obtain SSL, issuing self-signed SSL for: bemkt.com.br
[06.01.2020_02-04-13] Self signed SSL issued for bemkt.com.br.

rate limit 429 errror on letsencrypt