Issue Summary

The Agile Wallboard Gadget fails to render anything and also leaves no option to edit its configuration, intermittently OR few days after the gadget has been configured.

Steps to Reproduce

1. Configure an Agile Wallboard Gadget in Dashboard.

Expected Results

The gadget loads results as configured.

Actual Results

If the problem is reproduced then the gadget fails to render and below error is thrown

Workaround

Recreate the gadget.