So after I logged on today, I quickly noticed that my Questie Addon was bugged. It wouldnt display my quest correctly, or just not show at all. I then decided to re-install it, and this happened.

Now, no matter what I do, I cant get it to work and it says: enUS Key is Missing on everything.

You most likely have more than one Questie folder in your addon folder. Check for "Questie" and "QuestieDev-master" or something. Simply remove the latter and you should be fine,

Alright, that fixed it. Thanks alot! :)