WotLK Cannot be invited to group, and can't invite others to mine

[OHSHIETBABY]

Hello,Today I was equed thro random dungeon finder with 5 people, but somehow another one the 6 player was there, so we kicked each other, till everyone left expect me. I teleported out of the Pits of and my friends tried to invite me to group to find new random dungs. And they coudn't invite me, because i was still in the group.someone else was in it because someone was intianating dungeon check's i wasn't intianating any dungeon checks so clearly i wasn't alone, tho i couldn't see him in the group.
http://prntscr.com/j17gfn

[skullatbash]

type this on chat:
/script LeaveParty()

[OHSHIETBABY]

Thanks it helped me out!