Not sure what's wrong but since the update i did today it's not been working, when i log on my chat says:
Interface\AddOns\AllTheThings\AllTheThings.lua:6824: attempt to index field 'missingData' (a nil value)
I have no clue what this means....

Whenever an addon adds new files, you need to restart WoW completely for those files to load correctly.

Please let me know if the issue is still affecting you.