При продлении сертификата появились ошибки с предложением подождать 168 часов.

Attempting to renew cert (DOMAIN.ru) from /etc/letsencrypt/renewal/DOMAIN.ru.conf 
produced an unexpected error: urn:ietf:params:acme:error:rateLimited :: 
There were too many requests of a given type :: Error creating new order :: too many certificates (5)
already issued for this exact set of domains in the last 168 hours: DOMAIN.ru, retry after 
2023-06-02T21:57:31Z: see https://letsencrypt.org/docs/duplicate-certificate-limit/. Skipping.

Установка и попытка обновить через acme.sh успеха не имела: сертификат не продлевался.

Create new order error. Le_OrderFinalize not found. {"type":"urn:ietf:params:acme:error:unauthorized","status":401,"detail":"A requested identifier is not permitted [DOMAIN.ru]"}

Пришлось сменить сервер сертификации и дело пошло на лад:

./acme.sh --debug --log --set-default-ca --server letsencrypt

[Thu Jun  1 17:11:56 MSK 2023] Using server: https://acme-v02.api.letsencrypt.org/directory
[Thu Jun  1 17:11:56 MSK 2023] Running cmd: setdefaultca
[Thu Jun  1 17:11:56 MSK 2023] Changed default CA to: https://acme-v02.api.letsencrypt.org/directory