Upon entering the game:
Interface\FrameXML\MoneyFrame.lua:185: attempt to perform arithmetic on local 'money' (a nil value)

/luna menu:
Interface\AddOns\LunaUnitFrames\LunaUnitFrames.lua:156: attempt to index global 'LunaOptionsFrame' (a nil value)
The menu fails to open.

/luna config:
...ns\LunaUnitFrames\libs\HealComm-1.0.lua:1430: attempt to index field 'pendingResurrections' (a nil value)
The config mode fails to load.

Upon attempting to access the game's menu (esc):
...ns\LunaUnitFrames\libs\HealComm-1.0.lua:1589: attempt to index field 'hooks' (a nil value)
The menu fails to open.

I am only using LunaUnitFrames and HealComm, no other addons; empty WTF folder. When I disable HealComm these errors go away and everything works.

Sorry. I missed a similar issue already closed. It is now my understanding that LunaUnitFrames includes all the functionality of HealComm and therefore there is no need to use them together.