Unknown errors causing my code for katana to not function

[SSJ_Lemonade (EvCS)]

What do you want to achieve? I was just working on an upcoming katana fighting game for my friend, and I am trying to handle the katana itself, using a clientsided script to fire remote events for a serversided script to handle.

What is the issue? I don’t know, that’s the issue,

Errors like these have been repeatedly happening without telling me what script is causing them, only referencing the client.
I know this is a script related issue however.

This is the explorer for all parts that could possibly be causing the errors.

I’m handing katana related events on the clientside first and then using remote events to handle them on the serverside.

Clientside script (inside katana tool)

local tool = script.Parent

local plr = game.Players.LocalPlayer
local char = plr.CharacterAdded:Wait()
local charEvents = char:WaitForChild("CharEvents")

function equipped()
	charEvents:WaitForChild("KatanaEquip"):FireServer(tool)
	print("KatanaEquip")
end

function activated()
	charEvents:WaitForChild("KatanaAttack"):FireServer()
	print("KatanaAttack")
end

function unequipped()
	charEvents:WaitForChild("KatanaUnequip"):FireServer()
	print("KatanaUnequip")
end

tool.Equipped:Connect(equipped())
tool.Activated:Connect(activated())
tool.Unequipped:Connect(unequipped())

The error, I believe was partially caused (or entirely) by the client, but I am not sure if that is true or how.

ServersideHandler script (child of StarterPlayer.StarterCharacterScripts.CharEvents)

local events = script.Parent

function changeIdleAnim(char, id)  -- Easily change idle animation
	local animateIdle = char:WaitForChild("Animate").idle
	animateIdle.Animation1.AnimationId, animateIdle.Animation2.AnimationId = id, id
end

function equip(plr, tool)	
	local char = plr.CharacterAdded:Wait()
	
	local animator = char:WaitForChild("Humanoid").Animator
	local animations = char:WaitForChild("Animations")
	
	local equipAnim = animator:LoadAnimation(animations.KatanaEquip)
	equipAnim:Play()  -- Play equip animation
	
	changeIdleAnim(char, "rbxassetid://14075694452")
	
	local sound = tool.Handle.Sound  -- Play sound
	sound:Play()
	
	
	-- Equip is always first to fire, so we can handle other events here as well
	
	local function activate()
		local fighting = require(game.ServerScriptService.FightingV3)
		
		-- Different attacks based on pendingmove (not yet implemented)

		local pendingMove = tool.PendingMove.Value
		
		local HRP = char:WaitForChild("HumanoidRootPart")
		
		if pendingMove == 1 then
			local slash = animator:LoadAnimation(animations.KatanaSlash)  -- Play slash animation
			slash:Play()
			
			local vectors = {}
			vectors.Offset = CFrame.new(0, 0, -2)
			vectors.Size = Vector3.new(2, 2, 2)
			fighting.CreateAttack(HRP, vectors, 5, 0.25, true)
		end
	end
end

events.KatanaEquip.OnServerEvent:Connect(function(player, katana)
	equip(player, katana)
end)

What solutions have you tried so far? Honestly, none other than attempts to dissect my code and figure out what went wrong.

Any help would be appreciated. If you would like to know more, just tell me.
This is my first post, so my apologies if I did something wrong.

[XSiggeManx (GreenGuyGaming)]

tool.Equipped:Connect(equipped())
tool.Activated:Connect(activated())
tool.Unequipped:Connect(unequipped())

These lines are causing the problem. When connecting a function, you do not want to type parentheses, because that would imply you are trying to connect what the function returns, which is nil. Replace those lines with this:

tool.Equipped:Connect(equipped)
tool.Activated:Connect(activated)
tool.Unequipped:Connect(unequipped)

[SSJ_Lemonade (EvCS)]

The error stopped persisting. Thanks.
(Other problems then followed, but I can probably fix them.)