Remote Event not responding, no errors, and worked before?

Summarizd: Working on a game makes firearms firearms work later they don't rewrite code works, but doesn't kill rewrites partial doesn't fire

worked originally with remote event, then stopped, took out, worked, but caused no damage to be dealt, added back in, don't work anymore. Is there something I am missing here? code: (server side)

    local tool = script.Parent

    local canFire = true

    local gunWeld

    local Rocket = game.Lighting.lazer

    local event = Instance.new("RemoteEvent")

    event.Parent= script.Parent

    event.Name = "FIRE_"..tool.Parent.Name

    event = script.Parent:FindFirstChild("FIRE_"..tool.Parent.Name)



    event.OnServerEvent:connect(function(player, targetx)

        if canFire and player.Character == tool.Parent then

            canFire = false

            local rocketClone = Rocket:Clone()

            local lazee = script.laz:Clone()

            local oth = script.destr:Clone()

            local target = targetx.Hit.p

            local spawnPosition = (tool.Handle.CFrame * CFrame.new(0, 0,0)).p

            rocketClone.CFrame = CFrame.new(spawnPosition, target)

            rocketClone.Velocity = rocketClone.CFrame.lookVector * 1000

            lazee.Parent = rocketClone 

            oth.Parent = rocketClone   

            local bod = Instance.new("BodyForce")

            bod.force = Vector3.new(0,196.2,0) * rocketClone:getMass()

            bod.Parent = rocketClone

            rocketClone.Parent = game.Workspace

            oth.Disabled = false   

            lazee.Disabled = false

            delay(0.5, function()

                canFire = true

            end)

        end

    end)

(client side)

local playerx = game.Players.LocalPlayer

    local mouse = playerx:GetMouse()

    local tool = script.Parent

    local waiT = true

    while waiT == true do

        if tool:FindFirstChild("FIRE_"..playerx.Name) == nil then

            wait()

        else

            waiT = false

            wait()

        end

    end

    event = tool:FindFirstChild("FIRE_"..playerx.Name)

    mouse.Button1Down:connect(function()

        event:FireServer(playerx, mouse)

    end)