I need some help here, I keep trying to install limewire but it say's failed to start up from either a firewall or loopback connections,i turned off my firewall then restarted my computer but it still won't let me in

it worked fine the first time i got it,then all of a sudden this happened. I then bought limewire pro......

it still happened. Im getting annoyed and i paid money for it too,id like it if i could get some help here please.