Nostalrius Begins - Quality wow vanilla realm (1.12)

Ive collected all the items needed for the quest "Ledger from Tanaris" but when i went to Gadgetzan and Krinkle Goodsteel to turn it in the question mark is still grey and i can't turn in the quest.

I have all the items needed:
20 Solid Crystal Leg Shaft
Goodsteel Ledger
Goodsteel's Balanced Flameberge
and Overdue Package

Does anyone know what to do?

Hi

Put the quest items into your bank, close the game & restart it.
Take the items out of your bank after you did.

The quest will be able to be completed then.

i actually tried that but it did not work for me sadly

Abandon the Quest, dont worry even though it says so, the quest items will NOT be deleted. Then pick it back up and turn it in.