Blank page when opening Admin settings

Blank page when opening Admin settings

Hello everyone,
I'm performing test restore operation for our ServiceDesk Plus build 12000
Installed same OS version, same SD build, restored SD from backup - without problems.
Server started, all looks working fine, but when I try to enter Admin settings - getting a blank page. No matter, domain or local user used. Different browsers, different computers.
In the same time, I can access admin settings when add to URL "/SetUpWizard.do?forwardTo=ziaconfiguration&PORTALID=1"

Tried two times with the same result. 
Part of serverout log attached.
What can be a problem and how I can fix it? Thanks. 

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