Try to connect the device that has encountered the Roblox error code 266 to a different network to resolve the error code. Fix #5: Check for any internal server error.

The Roblox error 500 can be one of the indicators of an on-going server problem so what you have to do is to check the game’s server status.

But what if you do have Roblox and you find it isn't working? Here is what you need to know about checking the Roblox server status.