Check if unit exists before calling UnitIsUnit

boot.lua

@@ -4,8 +4,8 @@
 		_ = nil
 		_detalhes = LibStub("AceAddon-3.0"):NewAddon("_detalhes", "AceTimer-3.0", "AceComm-3.0", "AceSerializer-3.0", "NickTag-1.0")
 
-		_detalhes.build_counter = 7222
-		_detalhes.alpha_build_counter = 7222 --if this is higher than the regular counter, use it instead
+		_detalhes.build_counter = 7223
+		_detalhes.alpha_build_counter = 7223 --if this is higher than the regular counter, use it instead
 		_detalhes.game_version = "v8.2.5"
 		_detalhes.userversion = "v8.2.5." .. _detalhes.build_counter
 		_detalhes.realversion = 140 --core version, this is used to check API version for scripts and plugins (see alias below)

classes/classe_others.lua

@@ -1413,8 +1413,7 @@ function _detalhes:CatchRaidBuffUptime (in_or_out)
 
 				for buffIndex = 1, 41 do
 					local name, _, _, _, _, _, unitCaster, _, _, spellid  = _UnitAura (RaidIndex, buffIndex, nil, "HELPFUL")
-					if (name and UnitIsUnit (unitCaster, RaidIndex)) then
-
+					if (name and unitCaster and UnitExists (RaidIndex) and UnitIsUnit (unitCaster, RaidIndex)) then
 						_detalhes.parser:add_buff_uptime (nil, cacheGetTime, playerGUID, playerName, 0x00000514, playerGUID, playerName, 0x00000514, 0x0, spellid, name, in_or_out)
 
 						if (in_or_out == "BUFF_UPTIME_IN") then
@@ -1457,7 +1456,7 @@ function _detalhes:CatchRaidBuffUptime (in_or_out)
 		for groupIndex = 1, _GetNumGroupMembers() - 1 do
 			for buffIndex = 1, 41 do
 				local name, _, _, _, _, _, unitCaster, _, _, spellid  = _UnitAura ("party"..groupIndex, buffIndex, nil, "HELPFUL")
-				if (name and UnitIsUnit (unitCaster, "party" .. groupIndex)) then
+				if (name and unitCaster and UnitExists ("party" .. groupIndex) and UnitIsUnit (unitCaster, "party" .. groupIndex)) then
 
 					local playerName, realmName = _UnitName ("party"..groupIndex)
 					local playerGUID = _UnitGUID ("party"..groupIndex)
@@ -1485,7 +1484,7 @@ function _detalhes:CatchRaidBuffUptime (in_or_out)
 		--player it self
 		for buffIndex = 1, 41 do
 			local name, _, _, _, _, _, unitCaster, _, _, spellid  = _UnitAura ("player", buffIndex, nil, "HELPFUL")
-			if (name and UnitIsUnit (unitCaster, "player")) then
+			if (name and unitCaster and UnitIsUnit (unitCaster, "player")) then
 				local playerName = _UnitName ("player")
 				local playerGUID = _UnitGUID ("player")
 				if (playerGUID) then