Need a gm asap: Stuck in group

[Frumkins]

i grouped with someone while questing in Netherstorm, Now Im stuck in group and can not group with anyone. Chat also keeps saying Looting threshold changed to group loot.

[pyyc1]

Make a ticket in-game and wait a couple of days

[taralej]

So you're saying you can't leave group normally by right-clicking on your character portrait and licking Leave Party?

If so, try typing this: /script LeaveParty()
If not, relog.
If not, delete your Cache folder.
If not, delete your WTF folder (will reset your game settings).
If still not, you broke your game and must re-install.

Either way, you won't find GMs on forums - they're in-game.