Need Help! Filezilla Client - Having Trouble

[File_Newbie]

I have had no problems until the newest update for Filezilla Client

Here is what Error I am getting

Connection attempt failed with "EAI_NODATA - No address associated with nodename".

What does this mean?

My website is still functioning and I need to add my things to it and it is not letting me due to this.

[botg]

Either the hostname doesn't exist or some firewall is rudely blocking FileZilla.