I am new to trailhead so I started with the trailhead playground management and already I have encountered some difficulty on the third module.  I am able to view my installed package in classic mode but not in Lightning and thus it is showing that I have not completed the hand-on assignment.  Can someone please help.  Thanks!

I am new to trailhead so I started with the trailhead playground management and already I have encountered some difficulty on the third module.  I am able to view my installed package in classic mode but not in Lightning and thus it is showing that I have not completed the hand-on assignment.  Can someone please help.  Thanks!