If you are asked to continue installation without flag settings in Roblox, first clean Roblox App Data and see if it helps. More fixes here.

To do this, from the Roblox app, press the three dots in the bottom right-hand corner, and then scroll down to Settings. Tap that, then Parental Controls.

1] Force restart the app The very first thing you need to do if the Roblox marketplace is not working is restarting the application.