I cannot start or enable vsftpd service on my Wordpress One-Click app on Ubuntu 16. I tried following this guide but it does not work.
This is the output of sudo systemctl status vsftpd
● vsftpd.service - vsftpd FTP server
Loaded: loaded (/lib/systemd/system/vsftpd.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Fri 2017-06-16 03:49:37 UTC; 8min ago
Process: 1423 ExecStart=/usr/sbin/vsftpd /etc/vsftpd.conf (code=exited, status=2)
Process: 1397 ExecStartPre=/bin/mkdir -p /var/run/vsftpd/empty (code=exited, status=0/SUCCESS)
Main PID: 1423 (code=exited, status=2)

Jun 16 03:49:37 wordpress-1gb-nyc1-01 systemd[1]: Starting vsftpd FTP server...
Jun 16 03:49:37 wordpress-1gb-nyc1-01 systemd[1]: Started vsftpd FTP server.
Jun 16 03:49:37 wordpress-1gb-nyc1-01 systemd[1]: vsftpd.service: Main process exited, code=exited, status=2/INVALIDA
Jun 16 03:49:37 wordpress-1gb-nyc1-01 systemd[1]: vsftpd.service: Unit entered failed state.
Jun 16 03:49:37 wordpress-1gb-nyc1-01 systemd[1]: vsftpd.service: Failed with result 'exit-code'.