Probably because your connection (ssl server cert) is not valid for the domain. Its a cert for hobbycharken.org
Just look in a browser what you get when you connect to https://trac.mediasafe.pro/
Well this is very strange. Chrome show cert is from Hobbycharken which is a domain on the vps. Firefox does not. And there is a valid certificate for trac.mediasafe.pro on the server. But it was not possible to get it right. So I ended up creating a new subdomain and now it works. Probably something happened when I transferred the domain to a new server. Thanks for seeing the cert problem
Have installed manager on Android 13 phone but cant connect to the server. See attached screenshot. server address is correct