Gui appears to have crashed

I have a centos 6 machine and I installed freepbx-13 using the tarball. I did a backup(A) from within the gui, then tried to restore a different backup(B), it didn’t work. So then I tried to restore backup(A) again and the whole freepbx system appears to have crashed. In the browser it’s just a white page with black text that reads:

0 System Admin 13.0.67 Copyright 2016 by Schmoozecom, Inc., All rights reserved By installing, copying, downloading, distributing, inspecting or using the materials provided herewith, you agree to all of the terms of use as outlined in our End User Agreement which can be found and reviewed at www.schmoozecom.com/cmeula_

in the console I tried fwconsole restart, fwconsole ma install framework but all commands give:
0

System Admin 13.0.67
Copyright 2016 by Schmoozecom, Inc., All rights reserved

By installing, copying, downloading, distributing, inspecting or using
the materials provided herewith, you agree to all of the terms of use as
outlined in our End User Agreement which can be found and reviewed at
www.schmoozecom.com/cmeula

is this a case of format re-install everything? or can this system be rescued? Thanks for any advice.

bump.
can anyone help on this? can this system be rescued?