Make sure you be aware that you could only use the command line to migrate from servers with customized web hosting, as opposed to the Plesk interface. I see that in the remedy you advise to create a new configuration file in /etc/proftpd.d in place of modifying the prevailing /and https://plesk-migration-to-new-se12110.ktwiki.com/780745/little_known_facts_about_plesk_install