2 days ago getting site up and down warning for all sites using Let's Encrypt SSL. Redirecting sites back to http:// brought sites back running properly. Is this due to changes in the way certificates were originally issued and renewed with ISPConfig 3? I see references to Certbot. Where the relevant changes not included in ISPConfig 3 updates? Server is unning 3.1.13. Any documentation/comments on switching to Cerbot if that is the issue? https://www.howtoforge.com/communit...pconfig-3-1-2-how-to-install-correctly.75425/ ?