ProFTPD not working on Xampp 5.6.36

[cineguache]

Hi! When I try to initialize the ProFTPD Server it never comes to work, in the application log comes the next code:

MacBook-Pro proftpd[70188]: warning: unable to determine IP address of 'MacBook-Pro'
MacBook-Pro proftpd[70188]: error: no valid servers configured
MacBook-Pro proftpd[70188]: Fatal: error processing configuration file '/Applications/XAMPP/xamppfiles/etc/proftpd.conf'

It worked when I used the Xampp 7.2.6 but as someone told me it is used to work directly with FTP with an account, not with localhost. So I'm trying to use the Xampp 5.6.36

Does anyone know how may I handle this situation? I'm kind of an amateur yet.

Thanks!