I found back this older post i once started … Repeatedly https not working on Plesk … here is the Plesk support chat log :
Alex Davydov 08:28
I have checked the error message you provided and can conclude that the issue is caused by the fact that too many certificates were created for the domain for less than a week. As the result, limit Certificates per Registered Domain which is one of the Let’s Encrypt rate limits has been exceeded.
for details please refer to this article: https://support.plesk.com/hc/en-us/articles/115000068105-Unable-to-install-a-Let-s-Encrypt-certificate-Too-many-certificates-already-issued-for-exact-set-of-domains
Frank 08:29
ok thank you. I thought i have only 1 single certificate for all domains
also, how am i being creating certificates ? I just click for LetsEncript and put my LetsEncryt email and thats all of my interaction with it.
Alex Davydov 08:31
The possible cause that there are several subdomains of this domain or there are several tries to secure the domain and its email
Alex Davydov 08:32
In any case the issue is caused by Let’s Encrypt limit
Alex Davydov 08:32
And As the limit is defined by Let’s Encrypt directly and cannot be managed through Plesk. To overcome the issue wait for this week period to pass and reissue certificate.
Frank 08:39
I c, but if i don’t change anything, then next week the same problem continues, because it continued for years now. Only once in a while the problem disappears
Alex Davydov 08:43
Please note that this limit is the limit of Let’s Encrypt and I cannot say for sure how many times this certificate was used. Please wait for a 7 days and try to regenerate the certificate.
Frank 08:45
i mean, how do i limit the times the certificate is being created ?
Alex Davydov 08:47
It is not possible to limit it due to internal structure of Let’s Encrypt i.e. it is a let’s encrypt limit
Frank 08:48
ok so there is nothing i can do right or wrong in Plesk about it ?
Alex Davydov 08:49
From Plesk side this can not be managed and it is required to wait