I was trying to create a rule so that if and when the hub reboots, it activates scenes per mode. In order to test it, I tried to reboot the hub, the rule fired but it didn't actually execute the action (which I'd configured to have a 10 second delay). Then, I removed the delay and rebooted the hub, didn't work.
I deleted the rule and recreated with a different name. I push the "Run Actions" button and get the error as in the subject line. I'd be happy to provide detailed screenshots if that helps.