How do I stop my animations from repeating?

I've been working on the script for a while, I kind of know the issue, but I cant quite put my finger on it. Any help would be great.

Tool = script.Parent
char = Tool:FindFirstAncestorWhichIsA("Player").Character
hum = char:WaitForChild("Humanoid")
animfolder = Tool.Anims


slash = animfolder.Slash
idle = animfolder.Idle
equip = animfolder.Equip
unequip = animfolder.Unequip
swordwalk = animfolder.Walk
swordrun = animfolder.Run

playerState = nil
tag = Tool.Tag
slashsound = Tool.Handle.Slash
hitsound = Tool.Handle.Hit

cd = false

equipped = false

function Hit_Target(character, target_humanoid)
	--print(character, target_humanoid)
	target_humanoid:TakeDamage(20)
	hitsound:Play()
end

function Equipped()
	equipped = true
	walkanim = hum:LoadAnimation(swordwalk)
	idleanim = hum:LoadAnimation(idle)
	runanim = hum:LoadAnimation(swordrun)
	print("Equipped")	
end

function Activated()
	--print("Slash!")
	if cd == false then
		cd = true
		local animationTrack = hum:LoadAnimation(slash)
		idleanim:Stop()
		animationTrack:Play(0.3,1,1.5)
		slashsound:Play()
		
		Tool.Handle.Touched:Connect(function(hit)
			if cd == true then
				--print(hit)
				local character = hit:FindFirstAncestorWhichIsA("Model")
				if character then
					if character:FindFirstChildWhichIsA("Humanoid") then
						local target_humanoid = character:FindFirstChildWhichIsA("Humanoid")
						
						if tag.Value ~= nil then
							print("Already Tagged")
							
						else
							tag.Value = target_humanoid
							--print(character.Name, target_humanoid.Name)
							Hit_Target(character, target_humanoid)
						end
					end
				end
			end
		end)
		
		wait(1)
		cd = false
		tag.Value = nil
		idleanim:Play()
		
	end
end

function Deactivated()
	print("Deactivated")
end

function Unequipped()
	equipped = false
	print("Unequipped")
	idleanim:Stop()
end

Tool.Equipped:Connect(Equipped)
Tool.Activated:Connect(Activated)
Tool.Deactivated:Connect(Deactivated)
Tool.Unequipped:Connect(Unequipped)

while true do 
	wait(1)
	if equipped == true then
		print(hum:GetPlayingAnimationTracks())
		
		--for i, v in pairs(hum:GetPlayingAnimationTracks()) do
		--	print(i, v)
		--	if v.Name ~= playerState then
		--		v:Stop()
		--	end
		--end
		local speed = Vector3.new(char.HumanoidRootPart.Velocity.X, 0, char.HumanoidRootPart.Velocity.Z).Magnitude
		if speed >= 1 and speed <= 16.1 then
			print("Walking")
			print(hum:GetPlayingAnimationTracks())
			if table.find(hum:GetPlayingAnimationTracks(), "Walk") then
			else
				idleanim:Stop()
				runanim:Stop()
				walkanim:Play()
			end
			playerState = "Walk"
		elseif speed == 0 then
			print("idle")
			print(hum:GetPlayingAnimationTracks())
			if table.find(hum:GetPlayingAnimationTracks(), "Idle") then
			else
				runanim:Stop()
				walkanim:Stop()
				idleanim:Play()
			end
			playerState = "Idle"
		else
			print("Running")
			if table.find(hum:GetPlayingAnimationTracks(), "Run") then
			else
				idleanim:Stop()
				walkanim:Stop()
				runanim:Play()
			end
			playerState = "Run"
		end
	end
end

Hey :GetPlayingAnimationTracks() is deprecated so try and use .IsPlaying instead. Also you are looking for a "Run","Walk","Idle" that doesnt exist as :GetPlayingAnimationTracks() is a table of Objects and not actually strings.