5 red stars and "Training Necessary"

To adequately answer your question will require some more info such as your current Program settings and how much power data history has been synced to your account.
In the meantime, I suggest you go to the Training page at XO (xertonline.com), preferably on a PC/laptop/tablet, and read everything on that page including the help tips (?).
The iOS phone app provides a small snapshot while the Training page includes all the details.
You could also post a screenshot of your Training page.

Reference –
Training with the Xert Adaptive Training Advisor – Xert (baronbiosys.com)

You should also find my Onboarding post for newbies of value –
Onboarding steps for Xert Trial users and newbies - General - Xert Community Forum (xertonline.com)