Error 400 in Roblox, Explained In a nutshell, Error 400 crops up due to a number of system-wide reasons, but they largely pertain to issues with the Roblox online servers.

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.

Error code 267 on Roblox is among the more significant problems that can arise on the platform. Here's what causes it and how to fix it.