It works in studio mode but somewhat doesn't work at all in server mode.

game:GetService('Players').PlayerAdded:connect(function(player) -- did I do something wrong here?
	player.CharacterAdded:connect(function(character) -- or here?
		character:WaitForChild("Humanoid").Died:connect(function() -- or even here?
			script.Parent.GameCam.Disabled = true
			wait(5.5)
			script.Parent.GameCam.Disabled = false
		end)
	end)
end)