You're better off filing a ticket over at CurseForge/WoWAce as the developer/maintainer (Ckknight and Shefki) of Pitbull4 do not frequent these boards. Also you may want to consider downloading the latest build to see if the problem has been fixed.
To file a ticket:
http://www.wowace.com/addons/pitbull4/tickets/
Latest builds:
http://www.wowace.com/addons/pitbull4/