I am receiving the following message in my Windows Live Mail. How do I fix it?

Unable to send or receive messages for the pop.bellaliant.net account. An incorrect password was entered. The next time you send or receive messages, you'll be asked to enter your user name and password for this account.

Server Error: 0x800CCC90
Server Response: -ERR account is currently inactive.
Server: 'pop.bellaliant.net'
Windows Live Mail Error ID: 0x800CCC92
Protocol: POP3
Port: 110
Secure(SSL): No