How to fix Touched event errors in my game to reduce lag?

So here's the thing. My game has a ton of Touched statements for example a ball tool. Once it moves from lightning to workspace it outputs the error that Touched is not a valid member of Workpspace but however only for that time. When a player touches the ball it can access that touched event. How can i make it to remove those errors from Touched cause with all those errors i feel like itl lag my place over time.