Don't show power if the unit is dead

diff --git a/oUF_P3lim.lua b/oUF_P3lim.lua
index 438c02d..052b2e8 100644
--- a/oUF_P3lim.lua
+++ b/oUF_P3lim.lua
@@ -46,7 +46,7 @@ for name, func in pairs({
 	end,
 	['power'] = function(unit)
 		local power = UnitPower(unit)
-		if(power > 0) then
+		if(power > 0 and not UnitIsDeadOrGhost(unit)) then
 			local _, type = UnitPowerType(unit)
 			local colors = _COLORS.power
 			return ('%s%d|r'):format(Hex(colors[type] or colors['RUNES']), power)