I just tried to run the upgrade from 11 to 11.1a (setup: ZCM 11 on MS Windows server 2008R2 and eksternal SQL DB) and at the end got the message that there was an error during the upgrade.

Checked the system-update.log, but not sure what to look for. In the upgrade log it shows it's something regarding "packages" and that I should see the system-update.log.

Now I can't open the ZCC on the server (only ONE server in the zone). So any ideas what to do now? Or what to look for?
If wanted I'll post the log.