Running letsencrypt
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for petrfiedler.eu
Using the webroot path /var/www/nextcloud for all unmatched domains.
Waiting for verification...
Cleaning up challenges
Failed authorization procedure. petrfiedler.eu (http-01): urn:ietf:params:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://petrfiedler.eu/.well-known/acme-challenge/g5BE04gCHuCXE6nSW1fQRhzI0zoMOKU-iSjksVOmEsE [89.221.213.87]: "\n\n404 Not Found\n\nNot Found
\n\n\n404 Not
Found\n\nNot Found
\n