How do I properly enable and disable player input?

I am trying to disable and enable player's input so that they cannot move/jump. I am aware of setting JumpPower and WalkSpeed to 0, but the player is being moved via scripts. Player touches npc, triggers cut scene and disables controls.

RunService:UnbindFromRenderStep("ControlScriptRenderstep")

Player then battles npc and either wins or dies.

If it wins it will run the code,

RunService:BindToRenderStep("ControlScriptRenderstep", Enum.RenderPriority.Input.Value, function(dt) Controls:OnRenderStepped(dt) end)

and then the player can move again. However, when it dies it will run the same code, however the player cannot move. I have tried running an event right when the player's health is set to 0, I've tried

    game.Players.PlayerAdded:Connect(function(player)

player.CharacterAdded:Connect(function(character)

character:WaitForChild("Humanoid").Died:Connect(function()

repeat wait() until player.Character

game.ReplicatedStorage.Remotes.CharDiedRemote:FireClient(player)

print("Died")

end)

end)

end)

and then in a local script

    local function CharDied()

print("Respawned")

RunService:BindToRenderStep("ControlScriptRenderstep", Enum.RenderPriority.Input.Value, function(dt) Controls:OnRenderStepped(dt) end)

end

game.ReplicatedStorage.Remotes.CharDiedRemote.OnClientEvent:Connect(CharDied)

It prints both died and respawned, but still doesn't allow player to move.

Is there a better way of doing this, or am I doing something incorrectly?