Fix #2: Uninstall Roblox Player and delete the Appdata folder. If everything is updated but Roblox is still crashing, the next solution that you can try is to completely remove the game.

The Roblox crashing on your Xbox Series X is an issue that can be caused by various factors. This could be due to a game bug, a corrupted cached file, or an outdated console software. To fix this ...

If you get The application encountered an unrecoverable error on Roblox on your Windows PC, restart your computer and then use these fixes.