Roblox not working is a common problem in 2021. So here are some solutions that can resolve this issue to get Roblox working for you again ...

Roblox seems to work smoothly with Google Chrome compared to other browsers at this time so be sure to try this solution at this point. Fix #3: Reset web browser settings.

How to fix an error occurred while starting Roblox? If you’re experiencing the error occurred while starting Roblox, you’ll have to do a number of troubleshooting steps to fix the problem.