Sometimes it may be required to close all browser windows to fix issues. Often Clearing the cache or trying an Incognito/InPrivate window will fix the issue, but in some circumstances it may not.

The application remembers that you’ve logged in as long as your browser window is open. It will try to keep you logged in while you’re interacting with the application. Sometimes it may log out out in the background without you noticing it, then when you go to interact with the application there is some oddity or error. If you log back in and the issue is still happening, you may want to try closing all browser windows and logging in again.