Why is my gun refusing to shoot?

Basically, I want my gun to shoot, but it refuses to! There are no errors too.

local Humanoid = game.Players.LocalPlayer.Character:WaitForChild("Humanoid")
local Tool = script.Parent
local Animation = nil
local SettingsFolder = Tool.Settings
local MagSize = SettingsFolder.MagSize
local MagsLeft = SettingsFolder.MagsLeft
local CurrentBullets = SettingsFolder.CurrentBullets
local Damage = SettingsFolder.Damage
local MouseDown = false
local IsReloading = false
local IsEquipped = false
local CanShoot = true
local Mouse = game.Players.LocalPlayer:GetMouse()

Tool.Equipped:Connect(function()
    Animation = Humanoid:LoadAnimation(game.ReplicatedStorage.AK80_Hold)
    Animation:Play()
    IsEquipped = true
end)

Tool.Unequipped:Connect(function()
    Animation:Stop()
    IsEquipped = false
end)

Tool.Activated:Connect(function()
    MouseDown = true
    repeat
        wait(0.01)
        Fire()
    until MouseDown == false
end)

Tool.Deactivated:Connect(function()
    MouseDown = false
end)

function Reload()
    IsReloading = true
    Tool.Reload:Play()
    Animation:Stop()
    Animation = Humanoid:LoadAnimation(game.ReplicatedStorage.AK80_Reload)
    Animation:Play()
    wait(2.27)
    CurrentBullets.Value = MagSize.Value
    MagsLeft.Value = MagsLeft.Value - MagSize.Value
    Animation:Stop()
    Animation = Humanoid:LoadAnimation(game.ReplicatedStorage.AK_Hold)
    Animation:Play()
    IsReloading = false
end

function Fire()
    if IsEquipped == true then
        if IsReloading == false then
            if CanShoot == true then
                if CurrentBullets.Value == not 0 then
                    local ray = Ray.new(Tool.Handle.CFrame.p, (Mouse.Hit.p - Tool.Handle.CFrame.p).unit * 300)
                    local touch, position = workspace:FindPartOnRay(ray, game.Players.LocalPlayer.Character, false, true)
                    local trace = Instance.new("Part")
                    trace.Anchored = trace
                    trace.CanCollide = false
                    trace.Transparency = 0.5
                    trace.BrickColor = BrickColor.new("Electric blue")
                    trace.Material = Enum.Material.Neon
                    local distance = (Tool.Handle.CFrame.p + Vector3.new(0,0.6,0) - position).magnitude
                    trace.Size = Vector3.new(0, 0, distance)
                    trace.CFrame = CFrame.new(Tool.Handle.CFrame.p + Vector3.new(0,0.3,0), position) * CFrame.new(0, 0, -distance / 2)
                    trace.Parent = workspace
                    wait(0.1)
                    trace:Destroy()
                    Tool.Fire:Play()
                    CurrentBullets.Value = CurrentBullets.Value - 1
                    if touch then
                        local humanoid = touch.Parent:FindFirstChild("Humanoid")
                        if not humanoid then
                            humanoid = touch.Parent.Parent:FindFirstChild("Humanoid")
                        end
                        if humanoid then
                            humanoid:TakeDamage(Damage.Value)

                elseif CurrentBullets.Value == 0 and IsReloading == false and MagsLeft == not 0 then
                    Reload()
                end                 
                end
                end
            end
        end
    end
end