Hi, I am Dhanam, here to help you at the Microsoft Community.
Make sure you are using the most updated version of your browser to Play Roblox. If you are having issues playing with your current browser, please try playing on a different browser, such as Microsoft Edge, Firefox or Chrome.
Kindly find this Roblox support page: https://en.help.roblox.com/hc/en-us/articles/20....
You can also get support from Roblox