Cant complete story quest [Thundoria Bank]

[noxustds]

So i have all the 4 Signatures but when i go to the NPC to complete the quest it doesnt let me, grey button. Even tho it says i have everything in the quest requirements

 

[Zankza]

Screenshot please. upload to https://imgur.com

 

[Leba]

You need "Ancient Key" in your inventory.

 

[noxustds]

You need "Ancient Key" in your inventory.

Oh, thank you. Im dumb lol