Hello everybody,
I run Nextcloud in Docker on my server. I installed Nextcloud as shown by TechnoDad in his video. 
Everything has been perfect so far.
For a few days I have the following problem:
If I try to call the website of my server via a web browser, I get the following message:
Welcome to our server
The website is currently being setup under this address.
For help and support, please contact: me@example.com
I have already read the following note:
The welcome to our server error means that your LetsEncrypt is not connected to you Nextcloud within the phpfile.
Now my question: How can I fix this?
I configured my config.php file in AppData\Nextcloud\www\nextcloud\config\ as follows:
$CONFIG = array (
'memcache.local' => '\\OC\\Memcache\\APCu',
'datadirectory' => '/data',
'instanceid' => 'oc98baodq7f7',
'passwordsalt' => '************************/L',
'secret' => 'G/ClPNLAxmfnbswe****************************',
'trusted_domains' =>
array (
0 => '192.168.178.100:444',
1 => 'ttserv.duckdns.org',
),
'overwrite.cli.url' => 'https://ttserv.duckdns.org',
'overwritehost' => 'ttserv.duckdns.org',
'overwriteprotocol' => 'https',
'dbtype' => 'mysql',
'version' => '16.0.1.1',
'dbname' => 'nextcloud',
'dbhost' => '192.168.178.100:3306',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.******' => true,
'dbuser' => '*****',
'dbpassword' => '*****',
'installed' => true,
);
Can someone tell me exactly how I can solve the problem?
Many Thanks