renew/remove fail
Creating a cert on a domain works for the first time, but if I try it again on a domain that already has a LetsEncrypt cert, I get the following error

or if I try to delete a LetsEncrypt cert from the domain's SSL Certs page, I get an error like the following:

I assume this is due to a server permissions problem, but I'm unsure where to look to resolve this and the error gives no specific info about where the permissions are failing.
Same or similar problem. Can not renew the certificate

@wkaserv the error seems caused by Let's Encrypt CA problems. Check the status at https://letsencrypt.status.io/ Now I see: [Investigating] We are looking into a problem causing some users to experience errors when attempting to issue a certificate.
@thos37 the issue is not related to the extension, you'd better ask Plesk support.