Gmail seems to be temporarily down. When we are trying to sing in to Gmail, the page is rendering Error 502 (Server Error)!!1. So, what does it mean?
Here’s what Gmail Help article says:
If you’re seeing a “Temporary Error (502)” message when you try to sign in to Gmail, your mail is temporarily unavailable. This error usually goes away quickly, so try signing in again in a few minutes. Even though you can’t sign in for the moment, your messages and personal information are still safe.
So, there’s no need to worry about any of your Mail data! Anyways, It is always suggested to have your data backedup and current work is saved somewhere.