Hello, I am having this error since a while in acme.log. I tryied to dig it but did not founf how to solve it. Invalid response from http osteopathe-fontvieille.com/.well-known/acme-challenge/pw4Baen2AyrYdIUXf0ba-dSn2...: 404 Even creating the file in /usr/local/ispconfig/interface/acme/.well-known/acme-challenge file with ispconfig ownership, is still not accessible with direct https url. Site is redirected thru htaccess to osteopathe-fontvieille.fr one witch works fine. Thanks to provide me with some trics.