Quel'Delar quest problem

So im a ******. Did the quest chain up to Sunvell, entered it while in a party, when i started the event my friend left the party and before the event was finished i got ported out to the graveyard. When i wanted to reenter i got locked cus of entering too many instances recently. Now the weapon despawned. Can a GM help with this if i make a ticket ingame?

Hii. Umm if I'm not wrong... don't enter the dungeon... instead talk to the guard outside the dungeon and he will teleport u to some place. Then walk down and u will have to put the quel delar into some big firey thing. Just see a guide or smth. There are many in YouTube. All the best