Why does this coroutine crash Studio?

function InfiniteDamageOverTime(victim, dps)
				if victim and victim.Parent and victim.Parent.Torso and victim.Parent.Head then
					if victim and victim.Parent and victim.Parent:FindFirstChild('Humanoid') then
						for i=1, math.huge do
							if victim and victim.Parent and victim.Parent.Head and victim.Parent.Torso and victim.Parent:FindFirstChild('Humanoid') then
								if victim.Parent:FindFirstChild('Type') then
									if victim.Parent.Type.Value == 'Miniboss' or victim.Parent.Type.Value == 'Boss' then
										victim.Parent.Humanoid:TakeDamage((dps / 10) * 0.8)
									else
										victim.Parent.Humanoid:TakeDamage(dps / 10)
									end
								else
									victim.Parent.Humanoid:TakeDamage(dps / 10)
								end
								wait(.1)
							end
						end
					end
				end
			end				

This is my damage over time coroutine adapted from my one that has a duration / wears off. For my new shotgun, I needed a version of it with infinite duration which is seen here. It works as expected (continuously drains the enemy's health), but if the enemy is killed Studio crashes. Why would that happen?

This looks like the same situation as a "while" loop with no "wait()" function.

-- A part of your script, regarding the "for" loop
for i=1, math.huge do
	if victim and victim.Parent then
		-- Etcetera
		wait(.1)
	end
end

Once victim dies, victim.Parent becomes nil, which means the "if" statement's condition is not met. Therefore, no more wait() statements to run, which crashes studio.

I'd either use a "while" loop instead, or add a break.

-- Tab your code!
function InfiniteDamageOverTime(victim, dps)
	if victim and victim.Parent and victim.Parent.Torso and victim.Parent.Head then
		while victim and victim.Parent and victim.Parent:FindFirstChild("Humanoid") do
			if victim.Parent:FindFirstChild("Head") and victim.Parent:FindFirstChild("Torso") and victim.Parent:FindFirstChild('Humanoid') then
				if victim.Parent:FindFirstChild('Type') then
					if victim.Parent.Type.Value == 'Miniboss' or victim.Parent.Type.Value == 'Boss' then
						victim.Parent.Humanoid:TakeDamage((dps / 10) * 0.8)
					else
						victim.Parent.Humanoid:TakeDamage(dps / 10)
					end
				else
					victim.Parent.Humanoid:TakeDamage(dps / 10)
				end
			end
			wait(.1) -- I also repositioned the "wait()" function.
		end
	end
end