Hot Start Challenger - CDU 1 won't allow 'Status' page to load

[XML]

Hi, I reinstalled the CL650 and am going through the checklists.  When I select 'Status' on CDU 1, the CDU displays a blank page, then goes back to the Index page, so I cannot access the Status page.  The same happens if I try to access the POST INIT, or IRS CTL page.  I am getting a Message in the scratch pad that reads 'FMS Not Responding'.  I have tried several times, no luck.  CDU 2, on the other hand, works fine.  Is there a fix for this issue?  Thanks.

Edited May 27 by XML
Added information

[Pils]

Check the circuit breakers. Or create a new airframe.