Cant invite anyone into group or be invited. Says I am in group while there's no indication (happened after crash) please help

[whatisgoingon 0]

Me and the guy with which I went into a dungeon last night, before the crash happend, are now being in an "invisible" group, that can not be abandoned, nor invited anyone else into. Can this be looked into or told me how to fix it? Nobody is leader, both can join a dungeon and see eachother, the dungeon can not be resetted (with macro) and nobody can right click on his profile (happens when not being in a group)

I am looking forward to your reply

[whatisgoingon 0]

/script LeaveParty(); worked

[Siellas 0]

Same problem+ i cannot pick up items for quests like chests