Hello,
I use Nextcloudpi in the latest version. I cannot renew my Let’s encrypt certificate, it fails with the following error
Launching letsencrypt
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Cert is due for renewal, auto-renewing...
Renewing an existing certificate
Performing the following challenges:
http-01 challenge for nextcloud.mydomain.de
Using the webroot path /var/www/nextcloud for all unmatched domains.
Waiting for verification...
Cleaning up challenges
Failed authorization procedure. nextcloud.mydomain.de (http-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Fetching http://nextcloud.mydomain.de/.well-known/acme-challenge/ARaueTz3dan2w44ZVTCelgMx__zofIAmhZDAJ-UFCLc: Timeout
IMPORTANT NOTES:
- The following errors were reported by the server:
Domain: nextcloud.mydomain.de
Type: connection
Detail: Fetching
http://nextcloud.mydomain.de/.well-known/acme-challenge/ARaueTz3dan2w44ZVTCelgMx__zofIAmhZDAJ-UFCLc:
Timeout
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
your computer has a publicly routable IP address and that no
firewalls are preventing the server from communicating with the
client. If you're using the webroot plugin, you should also verify
that you are serving files from the webroot path you provided.
Done. Press any key...
Actual domain is name replaced in the error message.
The nextcloud instance is still available from the internet and port-forwarding is configured and unchanged from previous successful renewals. It may be possible that i messed up the apache2 virtual hosts configuration. What’s the best way to check?
Any help is appreciated 
