Core: fix 1 more place with bad cId parsing

DBM-Core/DBM-Core.lua

@@ -82,7 +82,7 @@ local function currentFullDate()
 end
 
 DBM = {
-	Revision = parseCurseDate("20250101184533"),
+	Revision = parseCurseDate("20250101190123"),
 	DisplayVersion = "10.1.13 alpha", -- the string that is shown as version
 	ReleaseRevision = releaseDate(2024, 07, 20) -- the date of the latest stable version that is available, optionally pass hours, minutes, and seconds for multiple releases in one day
 }
@@ -11705,7 +11705,7 @@ function bossModPrototype:GetBossHPString(cId)
 	for i = 0, mmax(GetNumRaidMembers(), GetNumPartyMembers()) do
 		local unitId = ((i == 0) and "target") or idType..i.."target"
 		local guid = UnitGUID(unitId)
-		if guid and tonumber(guid:sub(9, 12), 16) == cId then
+		if guid and tonumber(guid:sub(8, 12), 16) == cId then
 			return floor(UnitHealth(unitId)/UnitHealthMax(unitId) * 100).."%"
 		end
 	end