Why does the camera get glitched up after being "fixed"?

When a player joins the game on the mainGUI I have it set up for the camera to Rotate around a part in the Workspace... And that event is triggered by a button well theres another button thats suppose to trigger the exact opposite (making the camera go back to normal..) but when it does that the player can't rotate his camera or his camera is just stuck...

Script 1 (Rotates Camera)

NewCam.CameraType = Enum.CameraType.Scriptable
NewCam.FieldOfView = 30
NewCam.CameraSubject = target
GUI:TweenPosition(UDim2.new(1, 0, 1, 0), "Out", "Quad", 3)
GUI2:TweenPosition(UDim2.new(0, 0, 0, 0), "In", "Quad", 2)
while wait() do
    NewCam.CoordinateFrame = CFrame.new(target.Position) * CFrame.Angles(0, angle, 0) * CFrame.new(0, 0, 5)   
    angle = angle + math.rad(1)

Script 2 (Stops the Camera from Rotating)

script.Parent.MouseButton1Down:connect(function(click)
game:GetService('Players').LocalPlayer.CameraMode = Enum.CameraMode.Classic
camera.CameraType = "Custom"
camera.CameraSubject = game.Players.LocalPlayer.Character.Humanoid
camera.FieldOfView = 70
print 'CamScript Worked!'
print(game.Players.LocalPlayer.Name..' is now being Teleported..')
GUI:TweenPosition(UDim2.new(1, 0, 1, 0), "Out", "Quad", 3)
wait(1)
GUI2:TweenPosition(UDim2.new(0, 0, 0, 0), "In", "Quad", 2)

wait(2)