Servers groups not syncing, getting "Forbidden (HTTP code: 403)" after upgrade 10.0.1

[Atari8]

Hello,

My servers aren't syncing anymore after the upgrade to 10.0.1 (10.0.0 had the same issue)
Getting the following errors:
Error: Sync error: Failed to register the panel in SSO: The following SSO error occurred: Forbidden (HTTP code: 403)
Please resolve the problem manually and retry to sync this panel.
and
Error: Failed to sync server #159 'hidden.host.com': Failed to register the panel in SSO: The following SSO error occurred: Forbidden (HTTP code: 403)

Tried:
/usr/share/plesk-billing/update-hostname --new-hostname=xxx
and tried to reconfigure sso, disabling and enabling with:
/opt/psa/bin/sso

No joy ;/

All my hosts are running Debian 5 x86.
Please help!

 

[seeker862]

Any progress?

I'm a new user and the Business and Customer Manager isn't syncing with the Control Panel (10.0.1). I get the same error. Any progress on figuring this out?