How to install proftpd?
You can install proftpd in Kodi using the SuperRepo repository, the repository of the developer or by installing a single zip-file.
The easiest way is to install SuperRepo repositories, which contains over 2.200 Kodi addons for free.
About SuperRepo and proftpd
SuperRepo does not maintain proftpd. We only provide an automated index for Kodi users to have easy access to proftpd and other addons for Kodi. We are not affiliated with the developers (vpeter4 (peter.vicman[AT]gmail.com)) and do not provide help for this particular addon.