Insufficient permissions level?

This script is on a LocalScript and should change the Player's devCameraOcclusionMode (not the StarterPlayer) But when i test it online, it happen "Insufficient Permission Level to set value"

I seen on the wiki.roblox.com and it's not an ReadOnly value

here's the line of this script

script.Parent.Parent.DevCameraOcclusionMode = Enum.DevCameraOcclusionMode.Invisicam

Instead of getting the player by doing script.Parent.Parent use local player:

local player = Game.Players.LocalPlayer

Local player is the player you are playing as. So your script would be:

local player = Game.Players.LocalPlayer
player.DevCameraOcclusionMode = Enum.DevCameraOcclusionMode.Invisicam

This script needs to be in a local script or it will not work. It may work in studio because studio is blind between scripts and local scripts.