I got some issues with some UI update

[DarkruneDOTDK]

Hi.

I am fairly new to making addons for WoW and started recently on a little project. Right now I try to get all the emissaries currently available to the character and I want to change the UI then a World Quest gets completed.

My problem right now is, that I can't seem to get them to update... It tells me that it tries to get length of table but it's nil, even though I specifically declares it above the function that sets up the event listener.

The event I am currently using is QUEST_POI_UPDATE, though I am not sure it's the right event for it either...

The source code is attached.

Any help is appreciated.