First things first: make sure you’re running the latest version of the Roblox Player. Outdated versions are notorious for causing conflicts. Check the official Roblox website or your platform ...

Soon after, he was presented with a message displaying Error Code 273. This code meant that he would not be able to play the game with the same credentials anymore since he had been banned.

To fix this error, disable Roblox hacks and cheats, try signing into Roblox on a different device, or appeal your Roblox account ban on the Roblox support page.