These are two types of secure FTP.
SFTP is FTP using SSH.FTPS is FTP over SSL or TLS.
SFTP is allowed on any server, and you can connect over port 2222. If you cannot connect, please contact HostGator via live chat, phone, or email support@hostgator.com to tell us.
FTPS is allowed on dedicated and VPS servers only. Please submit a ticket to support@hostgator.com requesting "enable TLS for FTP".