Keep getting messages in history that say....but some devices are disconnected

I have 2 automations, 1 called Home simply turns the lights on, turns 2 power sockets on and unlocks the door with a 1 min delay and displays a message saying “Home” when I’m “at home”. The 2nd one called Away switches the above lights and sockets off when I’m “not at home” and displays message saying “Away”

I keep getting messages in the history section within smartthings app saying “Home had been activated, but devices are disconnected” or “Away had been activated, but devices are disconnected”

Any idea how to find out what this really means.

I have 2 socket’s a wemo and a tplink, 1 Yale conexis and 1 aurora dimmer switch.