Google recently rolled out Chrome version 80 which introduced a change to 'SameSite' cookies which is incompatible with Vocareum when your assignment/lab is embedded within another website.  In most cases, you may be presented with a login page and error message, even though you are already logged into the original site - 

We are working urgently to address this incompabitibility.  

In the meantime, there are two workarounds - 

  1. Use a non-Chrome browser, like Edge, Safari or Firefox; or 

  2. Disable the following flags in Chrome:

Sorry for the inconvenience!  We will update you when the issue has been resolved.