WotLK Stuck in group

[FedeSenpai]

So basically i am stuck in a group with a player named Normagomedov and i can't leave group because it's like i'm not in a group, the thing is i can't queue for rdf because it counts as this other player is in a group with me which is not true. Tried disconnecting but it's not working. Also tried whispering this other player so he can leave group but he/she/it is ignoring me and i can't do anything

[Thorbjorn]

Type this code in chat:

/script LeaveParty()

and relog after it.