Using the webroot path /var/snap/nextcloud/current/certs/certbot for all domains.
Waiting for verification...
Cleaning up challenges
Attempting to renew cert (nextcloud.wikimedia.se) from /var/snap/nextcloud/current/certs/certbot/config/renewal/nextcloud.wikimedia.se.conf produced an unexpected error: Failed authorization procedure. collabora.wikimedia.se (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://collabora.wikimedia.se/.well-known/acme-challenge/<HASH>: "<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p", nextcloud.wikimedia.se (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://nextcloud.wikimedia.se/.well-known/acme-challenge/<HASH>: "<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p". Skipping.
All renewal attempts failed. The following certs could not be renewed: