WowAce

 When trying to delete a unit frame in Units, the following Lua error is shown:

4x PitBull4\Options\Units.lua:286: attempt to call method 'Deactivate' (a nil value)
PitBull4\Options\Units.lua:286: in function <PitBull4\Options\Units.lua:281>
(tail call): ?
[C]: ?
[string "safecall Dispatcher[3]"]:9: in function <[string "safecall Dispatcher[3]"]:5>
(tail call): ?
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0-66.lua:586: in function `OnAccept'
FrameXML\StaticPopup.lua:4964: in function `StaticPopup_OnClick'
[string "*:OnClick"]:1: in function <[string "*:OnClick"]:1>