[Apiman-user] Plugins page stack trace - APIMan 1.2.1 on PostgreSQL 9.5

Good day, I was hoping to follow the recently published steps <http://www.apiman.io/blog/gateway/security/oauth2/keycloak/authentication... for using Keycloak to OAuth protect an API with APIMan. I already have the backend API (war file) protected by Keycloak directly. When I click on the 'Manage Plugins' link: [image: Inline image 1] I receive the error shown (full trace attached): [image: Inline image 2] Any tips on which Postgres table/column is the problem? At a higher level, I'm not sure I understand the blog post however. I've already protecting the various apiman *war files and their endpoints with Keycloak's authentication behavior (default is OpenID Connect). So if the APIMan endpoints are protected already, what does the OAuth policy provide further? Any clarification on the integration points between Keycloak and APIMan would be appreciated. Thanks much, Guy