Hi,
from logs there is some problem with communication to SSO ....
please check that all vCenter services are configured to start with same account (etc. /LOCAL SYSTEM or domain account with admin priv.)
Do you have any antivirus software installed on the server?
You can also try to refresh trust between vCenter components by reregistering them to each other see:
VMware KB: Re-pointing and re-registering VMware vCenter Server 5.1 / 5.5 and components
Regards,
P.