Shipping & Handling bug...?

I am at my wits end trying to figure out if this is a bug or if I’ve done something wrong. So where my quests pop up to track them on the right side of my screen it is just a tan square that says “Shipping & Handling” and there’s NOTHING else there. I’ve tried logging out completely and logging back on, reloading while in game, and I’ve even tried getting in my goblin car and starting and X’ing out of the mission. NOTHING works to get rid of it. Doesn’t matter if I am in the goblin zone or in stormwind, it’s still there. It’s really annoying and very distracting. Is there any way I can get rid of this?? If anyone knows, please let me know! Thank you.

I forgot to mention that when I log back into the game on my character I hear the failed quest sound and it says “Tailgater Troubles failed.” I don’t know if that helps or not, but I have no quest in my quest log called “Tailgater Troubles” so I truly don’t know what’s going on.