Today many users began reporting that this error was getting spammed locally in my game, causing crippling lag that made the game unplayable. The error comes from the default LocalSound character script. Implemented an easy single-line script to stop it on my end.
This is the game. The last time I edited any scripts was about a week and a half ago. It’s pretty simple to fix the LocalSound script by just asserting that the sound variable is not nil in the event callback, so that’s what I’ve done.