How to mute player's movement

Hello, I have troubles with muting player’s movement and jumping/landing. Could you please help me and tell how to do this? I’m getting error and it says that “Jumping” is not a valid member of Player1.Character.HumanoidRootPart
This is my code:

game.ReplicatedStorage.RemoteEvents.Skills.SilentMode.OnServerEvent:Connect(function(player,timeMultiply)
	player.Character.HumanoidRootPart.Jumping.Volume = 0
	player.Character.HumanoidRootPart.Landing.Volume = 0
	player.Character.HumanoidRootPart.Running.Volume = 0
	wait(3*timeMultiply)
	player.Character.HumanoidRootPart.Jumping.Volume = 0.65
	player.Character.HumanoidRootPart.Landing.Volume = 0.65
	player.Character.HumanoidRootPart.Running.Volume = 0.65
end)

If you want to mute the sounds made by player’s characters place an empty local script named “RbxCharacterSounds” inside the StarterPlayerScripts folder.

Yeah but what if I want to mute player for special time, not for whole game?

Then you’d need to edit the aforementioned script, you can get a copy of it by running a live session in studio and navigating to the script’s location (StarterPlayerScripts).