I recently faced this error [nQSError: 35008] when am trying to check out OBIEE Admin tool.
I was trying to create dynamic repository variable, and when I try to check out and save repository OBIEE Administrator tool got freeze.
Start and Stop the BI service resolved my issue. I could not give much time to analysis this problem.
I will analysis and give the reason behind this problem very shortly. but for now I bounced the services and started working back.