Backup on windows server does not end.

I’m new here, I apologize if I do something inconvenient, I installed Duplicati, on a win server 2012, I need it to just back up a folder to an FTP server and at the end send a confirmation email, the backup file is small, 500mb or less.

The problem is that it starts, is part of the transfer but does not end, it is hours and hours informing that it is sending, but it never ends. What can I do to correct?

attached is my configuration file

Att (1014 Bytes)