Roblox Error 901 Solution According to the Roblox Help page, error code 901 typically occurs when players sign up for an account or link their Gamertag.

Fix Roblox Error Code 403 that occurs due to Authentication failed, Network connectivity problems and Security restrictions by following these suggestions.

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.