Symptoms

Clicking on "View All" from a simple list brings up a blank page and shows the following error.

Failing widget: 'Requested Items' (624afdb3d7230200a9addd173e24d4f4)

Release

Seen in Istanbul but not limited to other releases.

Environment

Service Portal

Cause

Using a widget other than "Data table from URL definition" on the List page.

Resolution

Replace the widget on the List page with 

Additional Information

https://docs.servicenow.com/bundle/kingston-servicenow-platform/page/build/service-portal/concept/data-table-url-widget.html

https://docs.servicenow.com/bundle/kingston-servicenow-platform/page/build/service-portal/concept/requested-items-widget.html