Monoprice 4-in-1 Motion sensor , Error : PropertyChanged Error. Object reference not set to an instance of an object

I have  8 Monoprice 4-in-1 Motion sensor all the throw the below  error , 

Please advice me how I can fix this 

Devices : 2/20/2019 2:34:32 PM : Error : Devices\Z-Wave\Sensor1\HomeSecurity : PropertyChanged Error. Object reference not set to an instance of an object. at BOSCommon.Data.NodeHost.SaveValue(String name, Object obj)

at BOSCommon.Data.NodeHost.PropertyChanged(String propertyName, Object value)