Thank you for your bug report.
This traceback should be showing up when you hover over a document name and it tries to load a preview of it. Can you please find some example document with which you have this problem and upload it so that we can try to reproduce the issue?
Thank you for your bug report.
This traceback should be showing up when you hover over a document name and it tries to load a preview of it. Can you please find some example document with which you have this problem and upload it so that we can try to reproduce the issue?