Error in the App Control Console - "DB_DataObject Error: No database name / dsn found anywhere"
A web session authentication token is lost.
This issue was tracked under EPCB-20358 and resolved with the release of Server 8.11.0. Upgrading the Server to that version (or higher) will resolve the issue.
In the meantime; close and reopen the browser, use incognito mode or temporarily use a different browser.