BlizzMove: The frame you just moved (GarrisonMissionFrame) is probably in a broken state, possibly because of other addons. Copy the text from this popup window, and report it to the addon author.

Bad anchor connections for "GarrisonMissionFrame":

"UIParent" is outside anchor family, but referenced by "GarrisonMissionFrame.MissionControlTab.245142a53d0" (created in "Interface/FrameXML/UIParent.xml:4", and "Interface/AddOns/GarrisonCommander/Widgets.lua:301" respectively)

"GarrisonMissionFrame.MissionControlTab.245142a53d0.245142a5420" is outside anchor family, but referenced by "GarrisonMissionFrame.MissionControlTab.245142a53d0.245142a5b50" (created in "Interface/AddOns/GarrisonCommander/Widgets.lua:301", and "Interface/AddOns/GarrisonCommander/Widgets.lua:323" respectively)