Coroutine doesn't do wait?

For some reason this code does not work for me, I never see "DONE" in the output, nor does it say it's not running. How can I fix this?

coroutine.resume(coroutine.create(function()
	print(coroutine.running())
	wait(30)
	print("DONE")
end))

Full Script:

_G.MaxWalkSpeed = 40
_G.DefWalkSpeed = 16
_G.MaxHealth = 500
_G.DefMaxHealth = 200
_G.MaxArmor = 100 -- In Percent
_G.DefArmor = 0
_G.Defaults = {["WalkSpeed"] = 16, ["MaxHealth"] = 200, ["Armor"] = 0}

database = {}

_G.TakeDamage = function(name, damage)
	player = game.Players:findFirstChild(player)
	if(player) then
		if(player.Character) then
			noid = player.Character.Humanoid
			noid.Health = noid.Health - damage
		end
	end
end

_G.addEffect = function(name, stat, increase, duration)
	player = game.Players:findFirstChild(name)
	if(player) then
		if(stat == "WalkSpeed") then
			noid = player.Character.Humanoid
			if(noid.WalkSpeed < _G.MaxWalkSpeed) then
				value = noid.WalkSpeed + increase
				if(value > _G.MaxWalkSpeed) then
					value = value - (value - _G.MaxWalkSpeed)
				end
				table.insert(database, {name, stat, noid.WalkSpeed})
				noid.WalkSpeed = value
				print(("Effects: Set %s's WalkSpeed to %s."):format(name, value))
			else 
				print(("Effects: Reached maximum walkspeed on %s."):format(name))
				return
			end
		elseif(stat == "Armor") then
			armor = player.Backpack:findFirstChild("Armor")
			if(armor) then
				value = armor.Absorbance.Value + increase
				if(armor.Absorbance.Value < _G.MaxArmor) then
					if(value > _G.MaxArmor) then
						value = value - (value - _G.MaxArmor)
					end
					table.insert(database, {name, stat, armor.Absorbance.Value})
					armor.Absorbance.Value = value
					armor.Health.Value = 250
				else
					print(("Effects: %s has reached maximum armor."):format(name))
				end
			end
		elseif(stat == "MaxHealth") then
			noid = player.Character.Humanoid
			if(noid.MaxHealth < _G.MaxHealth) then
				value = noid.MaxHealth + increase
				if(value > _G.MaxHealth) then
					value = value - (value - _G.MaxHealth)
				end
				table.insert(database, {name, stat, noid.MaxHealth})
				noid.WalkSpeed = value
				print(("Effects: Set %s's MaxHealth to %s."):format(name, value))
			else 
				print(("Effects: Reached maximum health on %s."):format(name))
				return
			end			
		end
		if(duration > 0) then
			addEffectTimer(name, stat, duration)
		end
	end
end

function hasPrevious(name, stat)
	for index = 1, #database do
		entry = database[i]
		if(entry[1] == name) then
			if(entry[2] == stat) then
				return {entry, i}
			end
		end
	end
	return nil
end

function addEffectTimer(name, stat, duration) 
	coroutine.resume(coroutine.create(function()
		print(coroutine.running())
		wait(30)
		print("DONE")
	end))--[[
	print(("%s's %s effect has worn off."):format(name, stat))
	player = game.Players:findFirstChild(name)
	if(player ~= nil) then
		if(player.Character ~= nil) then
			if(humanoid[stat]) then
				humanoid = player.Character.Humanoid
				previous = hasPrevious(name, stat)
				if(previous) then
					humanoid[stat] = previous[1][3]
					table.remove(database, previous[2])
				else
					humanoid[stat] = _G.Defaults[stat]
				end
			elseif(stat == "Armor") then
				armor = player.Backpack:findFirstChild("Armor")
				if(armor) then
					previous = hasPrevious(name, stat)
					if(previous) then
						armor.Absorbance.Value = previous[1][3]
						table.remove(database, previous[2])
					else
						armor.Absorbance.Value = _G.Defaults[stat]
					end
				end				
			end
			--[[
			if(stat == "WalkSpeed") then
				previous = hasPrevious(name, stat)
				if(previous) then
					humanoid = player.Character.Humanoid
					humanoid.WalkSpeed = previous[1][3]
					table.remove(database, previous[2])
				else
					humanoid = player.Character.Humanoid
					humanoid.WalkSpeed = _G.Defaults[stat]
				end
			elseif(stat == "MaxHealth") then
				previous = hasPrevious(name, stat)
				if(previous) then
					humanoid = player.Character.Humanoid
					humanoid.MaxHealth = previous[1][3]
					table.remove(database, previous[2])
				else
					humanoid = player.Character.Humanoid
					humanoid.MaxHealth = _G.Defaults[stat]
				end
			end
			
		end
	end--]]
end

This is for my LocalPlayer Admin {Tablets}

coroutine.resume(coroutine.create(function()
game:GetService("RunService").Stepped:connect(function()