WotLK Group Bugged, Can't do anything

[Suacuetate]

I entered on a dungeon with the random dungeon finder and the party was bugged, it says "instance is full" or some like that for someone that lefts outside, all the party leaves the group and i keep with the dungeon guide function and bugged "on group", i can't party others, nobody can't party me, and also i can't use neither the rdf nor the bg finder, what should i do? please help me

[mysecondacc]

/script LeaveParty() in chat and press Enter.