Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
Which requires some amount of access to the server.
We don’t know how it’s set up, but that probably requires logging into a control panel (if there is one), or logging in to SSH and running commands as root.
It’s recommended to fully automate Let’s Encrypt certificate renewal, but if it’s not automated, or if the automation fails, someone has to log into the server and take care of it.