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. My domain is: ns18.iasolucions (Actually i have 3, ns16.iasolucions, ns17.iasolucions, ns18.iasolucions) I ran this command: I used plesk interface It produced this output: The error mesage was this Could not issue an SSL/TLS certificate for ns18.iasolucions Details Could not issue a Let's Encrypt SSL/TLS certificate for ns18.iasolucions. Perhaps this domain is at risk group and is blacklisted on the Let's Encrypt side. See the related Knowledge Base article for details. Details Invalid response from https://acme-v02.api.letsencrypt.org/acme/new-order Details: Type: urn:ietf:params:acme:error:rejectedIdentifier Status: 400 Detail: Invalid identifiers requested :: Cannot issue for "ns18.iasolucions": Domain name does not end with a valid public suffix (TLD) My web server is (include version): Plesk Obsidian v18.0.76_build1800260406.11 os_Debian 12.0 The operating system my web server runs on is (include version): Debian 12.13 My hosting provider, if applicable, is: OVH I can login to a root shell on my machine (yes or no, or I don't know): No I'm using a control panel to manage my site (no, or provide the name and version of the control panel): Not sure what you mean The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): Not sure 10 posts - 7 participants Read full topic