Filezilla not connecting to server

Status: Connecting to 15.206.43.73:8081…
Status: Connection established, waiting for welcome message…
Response: 220 (vsFTPd 3.0.3)
Command: AUTH TLS
Response: 530 Please login with USER and PASS.
Command: AUTH SSL
Response: 530 Please login with USER and PASS.
Status: Insecure server, it does not support FTP over TLS.
Command: USER crio-user
Response: 331 Please specify the password.
Command: PASS ***************
Error: Connection closed by server
Error: Could not connect to server

refer this : Filezilla error module 3 connection error