“You could experience 1001 for multiple reasons, one is that your game failed to update and some of the files were corrupted. The second one is that the client (you or the app) is interfering with a ...

The pop-up implies that Roblox can sense nearby devices, so if a player thinks they’re alone while on Roblox, they might actually not be.

Basic Reinstall: Uninstall Roblox through your control panel (or Apps settings) and then download and install a fresh copy from the Roblox website. This is your first line of defense.