Board Thread:The Quarters - Q & A/@comment-89.72.172.219-20140926163303/@comment-24150802-20140926184330

You can see a description of this problem and how to fix it in the "Habit Added by a Third-Party Service" section on the [Known Bugs](http://habitrpg.wikia.com/wiki/Known_Bugs#Habit_Added_by_a_Third-Party_Service) page. In brief, it's a benign bug, just delete the task.