Some quests are broken.
Example The Guns of Northwatch

if you hover mouse over Theramore Marine for first time it gives you this error:

and there is nothing on tooltip about quest

Today after returning a quest.. it gives me this error

And the quest question mark was still on minimap and map as well :(
/questie q remove that mark, but still..

and another error right after login

That's the craziest error report I've ever seen.. It shouldn't be possible for QuestieTracker to ever be nil... Unless the file QuestieTracker.lua is missing or something

Thanks for reporting all these, ill look into it shortly, but man that's strange.

Yeah this was caused by a broken commit to master. Should be fixed in v2.0.7

ok.. btw today in the morning the checked state was working somehow with tracker.. after these 3 last commits, it seems broken again :(

update:and another problem.. sometimes after quest is accepted, there are no new marks on map.. they are there only after /questie q

update2: it seems that there arent any marks on minimap from questie atm