Boss Lua Script Need help

[David2222]

Hey, I've been trying to create a Boss for some time now but I can't seem to get the Lua part right. I've edited and fixed everything I could find but whenever I spawn my npc in game, nothing really happens. Here's the script:

function Arogos_Spell1(pUnit, Event)
 local plr = pUnit:GetRandomPlayer(0)
  if (plr ~= nil)
 then
 pUnit:CastSpellOnTarget(41078, plr)
 end
end

function Arogos_Spell2(pUnit, Event)
 pUnit:FullCastSpellOnTarget(41131, pUnit:GetMainTank())
end

function Arogos_Spell3(pUnit, Event)
 local plr = pUnit:GetRandomPlayer(0)
 if (plr ~= nil)
 then
 pUnit:CastSpellOnTarget(27810, plr)
 end
end

function Arogos_Phase1(Unit, Event)
 if Unit:GetHealthPct() < 75 then
   Unit:RemoveEvents()
   Unit:SendChatMessage(14, 0, "You're attacks are weak... this should be easy.")
   Unit:RegisterEvent("Arogos_Spell1",60000, 2)
   Unit:RegisterEvent("Arogos_Spell2",60000, 1)
   Unit:RegisterEvent("Arogos_Spell3",25000, 1)
   Unit:Register Event("Boss_Phase2",1000, 0)
 end
end

function Arogos_Spell4(pUnit, Event)
 local plr = pUnit:GetRandomPlayer(0)
 if (plr ~= nil)
 then
 pUnit:CastSpellOnTarget(55929, plr)
 end
end

function Arogos_Spell5(pUnit, Event)
 local plr = pUnit:GetRandomPlayer(0)
 if (plr ~= nil)
 then
 pUnit:CastSpellOnTarget(40832, plr)
 end
end

function Arogos_Phase2(Unit, Event)
 if Unit:GetHealthPct() < 50 then
   Unit:SendChatMessage(14, 0, "The reckoning has just begun!")
   Unit:RegisterEvent("Arogos_Spell4",30000, 2)
   Unit:RegisterEvent("Arogos_Spell5",60000, 1)
   Unit:Register Event("Boss_Phase3",1000, 0)
 end
end


function Arogos_Spell6(pUnit, Event)
 local plr = pUnit:GetRandomPlayer(0)
 if (plr ~= nil)
 then
 pUnit:CastSpellOnTarget(40683, plr)
 end
end

function Arogos_Spell7(pUnit, Event)
 local plr = pUnit:GetRandomPlayer(0)
 if (plr ~= nil)
 then
 pUnit:CastSpellOnTarget(40904, plr)
 end
end

function Arogos_Phase3(Unit, Event)
if Unit:GetHealthPct() < 25 then
  Unit: SetScale(1.7)
  Unit:SendChatMessage(14, 0, "I am unstoppable!")
  Unit:RegisterEvent("Arogos_Spell6",1000, 0)
  Unit:RegisterEvent("Arogos_Spell7",30000, 1)
 end
end

function Arogos_OnCombat(Untit, Event)
  Unit:SendChatMessage(14, 0, "By pain of death, leave this place at once!")
  Unit:Register Event("Boss_Phase1",1000, 0)
  Unit:Register Event("Boss_Phase2",1000, 0)
  Unit:Register Event("Boss_Phase3",1000, 0)
end

function Arogos_OnLeaveCombat(Unit, Event)
  Unit:SendChatMessage(14, 0, "Only I hold the true power!")
  Unit:RemoveEvents()

end

function Arogos_OnKilledTarget(Unit)
  Unit:SendChatMessage(14, 0, "The secrets... they're all mine!")
end

function Arogos_Death(Unit)
  Unit:SendChatMessage(14, 0, "You'll never take them from me...")
  Unit:RemoveEvents()

end


RegisterUnitEvent(85000, 1, "Arogos_OnCombat")
RegisterUnitEvent(85000, 2, "Arogos_OnLeaveCombat")
RegisterUnitEvent(85000, 3, "Arogos_OnKilledTarget")
RegisterUnitEvent(85000, 4, "Arogos_Death")

I run on Ascent Arcemu and the lua file is saved in my Scripts folder

If someone could tell me what I'm doing wrong that would be great
(I'm still a noob at this)