<div id="comment:0"></div> Clicking on a rating_info link in a list of notebook worksheets produces a blank page titled "Error | Sage Notebook". Diagnosis and suggested solution found in this [thread](http://groups.google.com/group/sage-support/browse_frm/thread/4d2524b7ae5dd26c#) on sage-support. Component: **notebook** Keywords: **notebook worksheet rating_info error** _Issue created by migration from https://trac.sagemath.org/ticket/6683_