I’m trying to have access to a server (I’m given a userID and the hots server) I’m trying to connect to it using the private key ( the public key was sent to them to set everything up), and I don’t have any password. Should I ask for a password, even though I use the key file? I don’t know what I’m doing wrong, …

Ubuntu VPS Hosting via Issues connecting to SFTP server on filezila using keyfile- Ubuntu 16.04.