SprintingAnimation:19: 预期 ')' (在列 29 处关闭 '(')，而是得到 ','

在我的游戏中，我做了一个可以奔跑的功能。 我将脚本的动画部分与主奔跑部分分开。 我得到了错误消息 "Workspace.Vlo_tz.SprintingAnimation:19: 预期 ')' (在列 29 处关闭 '(')，而是得到 ',' "。 这段代码是用来控制角色动画和奔跑条的：

local UIS = game:GetService('UserInputService')
local Player = game.Players.LocalPlayer
local Character = Player.Character
local players = game:GetService("Players")
local stamina = players.LocalPlayer.PlayerGui.StaminaHealth.MainFrame.Stamina

UIS.InputBegan:connect(function(input)
    local humanoid = Player.Character.Humanoid
    if input.KeyCode == Enum.KeyCode.LeftShift and humanoid:GetState() == Enum.HumanoidStateType.RunningNoPhysics and humanoid.MoveDirection.Magnitude > 0 then
        local Anim = Instance.new('Animation')
        Anim.AnimationId = 'rbxassetid://05168161960'
        PlayAnim = Character.Humanoid:LoadAnimation(Anim)
        PlayAnim:Play()

        while true do
            wait(0.05)

            if stamina.Position <= (-0.343, 0, 0.274, 0) then
                stamina.Position = UDim2.new(-0.343, 0, 0, 0)
            else
                stamina.Position = stamina.Position - UDim2.new(0.01, 0, 0, 0)
            end
        end
    end
end)

UIS.InputEnded:connect(function(input)
    if input.KeyCode == Enum.KeyCode.LeftShift then
        PlayAnim:Stop()

        while true do
            wait(0.005)

            if stamina.Position >= (0.487, 0, 0.274, 0) then
                stamina.Position = UDim2.new(0.487, 0, 0, 0)
            else
                stamina.Position = stamina.Position + UDim2.new(0.01, 0, 0, 0)
            end
        end
    end
end)

local humanoid = Player.Character.Humanoid
if humanoid.MoveDirection.Magnitude == 0 then
    PlayAnim:Stop()

    while true do
        wait(0.005)

        if stamina.Position >= (0.487, 0, 0.274, 0) then
            stamina.Position = UDim2.new(0.487, 0, 0, 0)
        else
            stamina.Position = stamina.Position + UDim2.new(0.01, 0, 0, 0)
        end
    end
end