Hi,
I'm not the "Guru" of logfiles...but I can see the following error in the log:
2013-02-28 11:20:12.796+0530 INFO [ServerChecker] Checking server components...
2013-02-28 11:20:12.799+0530 DEBUG [ServerChecker] Checking database...
2013-02-28 11:20:12.802+0530 DEBUG [ServerChecker] Using database version '1.48'
2013-02-28 11:20:12.805+0530 DEBUG [ServerChecker] Server has a valid database.
2013-02-28 11:20:13.809+0530 DEBUG [ServerChecker] Server has no valid license.
ch.dunes.util.LicenseException: Ssl certificate, 'com.vmware.vim.vmomi.core.exception.CertificateValidationException: Server certificate chain not verified'
Maybe you should have a look to your vCO-Configuration and correct the missing settings.
(https://<YOUR-VCO-HOST>:8283/auth/Login.action)
Regards,
Marc