I’ve noticed this error happens after every power interruption (of which we have had 3 or 4 a week here lately!). I’m not sure if you also end up with lots of invalid inputs as well assuming you can get out of the error loop. I follow @TrystanLea advice and remove invalid inputs followed by Redis flush. Not a cure, but now easily managed. In the interim I am putting together a UPS for the rPi…