KUDLED - UK 1/2/3 Gang Switch

Strange thing is that I can turn the light switch on and off via the ST app, but as soon as I turn the lights on and off via the light switch, the app does not update, and I’m getting errors.

groovy.lang.MissingMethodException: No signature of method: script15076185314711992021779.zigbeeCommand() is applicable for argument types: (java.lang.String, java.lang.String) values: [6, 2]
Possible solutions: zigbeeCommand(java.lang.Object, java.lang.Object, java.lang.Object)

Another error is this: ava.lang.NullPointerException: Cannot get property ‘sourceEndpoint’ on null object @ line 202

THe second is line 202 of the Kudled DH