To resolve this issue, use the following troubleshooting steps, in order, to work toward a resolution: 
  1. Press the F5 key on your keyboard to create a hard refresh.
  2. Shutdown the browser then reopen the browser.
  3. Clear Browser Cache/Cookies, then Shutdown the browser and reopen
  4. Attempt to Login from a different browser
  5. Attempt to Login from a different workstation, inside and outside of your Company Network
  6. Chat With Support and reference this article.