FTP over TLS Certificate Trust

Can someone please explain the significance of the information I get when trying to establish a FTPS connection, and how I can correct the problem?
Thanks in anticipation.

Hi, I am looking forward to receiving a reply from this community.

Meanwhile a response from Cyberduck support reads “… reach out to your server admin to change the certificate. It looks like your server is set up with an incorrect server certificate.”

+1 same issue

Have you tried issuing SSL for the domain or FTP domain path?

Yes but the FTP TLS certificate is always www.example.com. Same issue on a fresh vanilla Vultr CyberPanel image.

Can you PM me the domain in question?

if you want to use sftp from on port 22 please create and ssh account from the website manage and use that

FTP over TLS is different to SFTP

As checked, your domain has incomplete DNS setup. You need to specify glue record in domain registrar. An A record for Nameservers too are required.