Velos updates were implemented over the weekend that require you to clear your cache prior to logging into Velos.  Please see below information:

How to clear cache in Google Chrome: https://support.google.com/accounts/answer/32050?co=GENIE.Platform%3DDesktop&hl=en

How to clear cache in Internet Explorer: https://support.pearson.com/getsupport/s/article/Internet-Explorer-Delete-Cached-Files-and-Cookies?p=browser-usecases/browser-settings-delete-cached-files-and-cookies-ie

How to clear cache in Microsoft Edge: https://clear-my-cache.com/en/windows/microsoft-edge.html

How to clear cache in Mozilla Firefox: https://support.mozilla.org/en-US/kb/how-clear-firefox-cache