Hello, I installed the server late August. 3 months later today, let'sEncrypt update did not work and all server sites show a certificate error. No more sites are displayed. I tried to delete a certificate. There is always a remainder in SSL Key. I erase it, and then destroy the certificate again. I create and then I save the certificate. Same mistake. The date has alway expired yesterday. ISPConfig Log What to do ? The result is catastrophic since the sites ares not displayed.
Thansk Recin and Taleman for yours explanations. That the update of cerbot was not done correctly. There was a problem with IP v6. This one was recently activated at the host. It was therefore necessary to add the IP v6 in the DNS AAAA fields on the domain name with and without www, then add the IP v6 interface in etc/network/interfaces.d/ And finally use the command: Code: systemctl restart networking
