Hi Ann,
We have recently updated SonarQube, Postgres, and OpenShift. We are on the latest LTS version of SonarQube and Postgres, and the most recent version of OpenShift 3.11. We also saw similar errors when doing the upgrade SonarQube 8.9 LTS. Please see this topic for details: Sonarqube Upgrade 8.6 - #14 by pierreguillot.
Ultimately we had to upgrade in an empty directory as opposed to a PVC and the we could port the upgraded DB into an actual PVC.