Please could u help me

Hello, i am trying to use Smart FTP, but when i enter my details it doesn't let me use the FTP client even wen i am using the right details.

heres a log :

[14:48:15] SmartFTP v3.0.1021.4
[14:48:16] Resolving host name ""
[14:48:16] Connecting to Port: 21
[14:48:16] An attempt was made to access a socket in a way forbidden by its access permissions.
[14:48:16] Client closed the connection.
[14:48:16] Connect failed. Waiting to retry (30s)...

whats going on

Please add SmartFTP to the exceptions in your software firewall and antivirus product.