Hello,

I’ve followed the tutorials here to have my website use let’s encrypt to switch to https. today my website went down and the error i see when i visit it is “Error 526 Invalid SSL certificate”

I tried to renew let’s encrypt certificates through ssh and got the following:

root@vps1053567:~# sudo certbot --nginx -d x.net -d www.x.net
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator nginx, Installer nginx
Cert is due for renewal, auto-renewing...
Renewing an existing certificate
Performing the following challenges:
tls-sni-01 challenge for x.net
tls-sni-01 challenge for www.x.net
Waiting for verification...
Cleaning up challenges
Failed authorization procedure. www.x.net (tls-sni-01): urn:ietf:params:acme:error:tls :: The server experienced a TLS error during domain verification :: remote error: tls: handshake failure, x.net (tls-sni-01): urn:ietf:params:acme:error:tls :: The server experienced a TLS error during domain verification :: remote error: tls: handshake failure

IMPORTANT NOTES:
 - The following errors were reported by the server:

   Domain: www.x.net
   Type:   tls
   Detail: remote error: tls: handshake failure

   Domain: x.net
   Type:   tls
   Detail: remote error: tls: handshake failure

   To fix these errors, please make sure that your domain name was
   entered correctly and the DNS A/AAAA record(s) for that domain
   contain(s) the right IP address. Additionally, please check that
   you have an up-to-date TLS configuration that allows the server to
   communicate with the Certbot client.

Any ideas what could be the cause of this issue?

Thank you in advance!