Script breaks itself after a few uses and is pretty random

[Metalboy220 (StrobaCat)]

Hello im trying to make a “pole swing” mechanic in where you get attached to a part, jump to break the attachment and get a slight jump boost after that
It works most of the time, except when it decides to break itself for some reason… with "Workspace.Bar.Bar.Script:7: attempt to index nil with ‘Character’ " (and in-game which for some reason the jump boost doesnt work)

Server Side Script (is attached to the part)

local part = script.Parent
local debounce = false

local function weldPlayer(player)

    local character = player.Character
	local rootPart = character and character:FindFirstChild("HumanoidRootPart")

	
	if character and rootPart then

		local weld = Instance.new("WeldConstraint")
        weldObject = Instance.new("ObjectValue")
		weld.Part0 = part
		weld.Part1 = rootPart
		weld.Parent = part
		weldObject.Parent = character.HumanoidRootPart
		weldObject.Name = "WeldIsTrue"
		
		character.Humanoid.PlatformStand = false
		character.HumanoidRootPart.CanCollide = false
		print("is this working?")
		local sound = Instance.new("Sound", character)
		sound.SoundId = "rbxassetid://12222140"
		sound:Play()
	end
end

part.Touched:Connect(function(hit)
	if debounce == false then
		debounce = true
      local player = game.Players:GetPlayerFromCharacter(hit.Parent)
		weldPlayer(player)
		game.ReplicatedStorage.Test.OnServerEvent:Connect(function()
			if part:FindFirstChild("WeldConstraint") then
				print("fired the RemoteEvent")
				print("success")
				part.WeldConstraint:Destroy()
				weldObject:Destroy()
				wait(3)
				debounce = false
			end
		end)
	end
end)

Client Side Script (is inside StarterCharacterScripts)

local UserInputService = game:GetService("UserInputService")

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Bar = script.Parent.HumanoidRootPart

local remoteEvent = game.ReplicatedStorage.Test

UserInputService.InputBegan:Connect(function(input, event)
	if input.KeyCode == Enum.KeyCode.Space then
		if script.Parent.HumanoidRootPart:FindFirstChild("WeldIsTrue") then
			remoteEvent:FireServer()
			task.wait(0.1)
			if script.Parent:FindFirstChild('Humanoid') ~= nil then
				print("boing")
				script.Parent.HumanoidRootPart:ApplyImpulse(Vector3.new(0, 1000, 0))
			end
	end
	end
end)

Any idea what causes this to break? And why it when in-game (in testing works fine) the impulse doesnt work? Any help will be appreciated!

[Metalboy220 (StrobaCat)]

Ive now tried it ingame and it breaks with this:

[jaminz4 (jamie)]

@Metalboy220

  local player = game.Players:GetPlayerFromCharacter(hit.Parent)
		weldPlayer(player)

You need to check whether the part that triggered the touched event is parented to the player, as :GetPlayerFromCharacter() will just return nil if it doesn’t find a player, and then that nil value is passed to your weldPlayer function.

Add this code in between the two lines of code I quoted

if player == nil then return end

[Metalboy220 (StrobaCat)]

It doesnt break the whole testing now thankfully, but still breaks itself sadly

[Metalboy220 (StrobaCat)]

Nvm fixed it, put an anti-crash stuff thanks to jamie code, in case if it crashes it restarts itself, also rearraganed the code so after touching calls the function and then does the stuff Thx!