Error 404

When I try to Create New Rule!

Child app not found for namespace: hubitat and name: Rule-3.0
The Page requested could not be found
If you are seeing this screen repeatedly, please contact Support. For assistance, email support@hubitat.com or go to community.hubitat.com

Check if there is a new firmware for the hub. If so, update to it. It would probably be a good idea to uninstall the RM app completely and reinstall it after that too.

If it still doesn't work you can @ bruce (bravenel).