DRG Database Error Messages DRG-52108: failed to delete knowledge base user extension January 22, 2020 mpbod DRG-52108: failed to delete knowledge base user extension Cause: this is an internal error Action: check file permissions or contact Oracle support Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)