I used Mod.AddSetting(input = String) and use Console to Get String from mod setting but it's error.

FlowScriptEngine.FlowExecutionException: Error in flow execution ---> FlowScriptEngine.FlowExecutionException: Error in flow execution ---> System.NullReferenceException: Object reference not set to an instance of an object.
at FlowScriptEngineBasic.TypeConverters.ObjectStringConverter.Convert(Object data)
at FlowScriptEngine.TypeConverterManager.Convert(Type from, Type to, Object data)
at FlowScriptEngine.FlowSourceObjectBase.SetValue(String propertyName)
--- End of inner exception stack trace ---
at FlowScriptEngine.FlowSourceObjectBase.SetValue(String propertyName)
at FlowScriptEngineBasic.FlowSourceObjects.String.ValueFlowSourceObject.GetPropertyValue(String propertyName)
at FlowScriptEngine.FlowObject.GetSrcValue()
at FlowScriptEngine.FlowSourceObjectBase.SetValue(String propertyName)
--- End of inner exception stack trace ---
at FlowScriptEngine.FlowSourceObjectBase.SetValue(String propertyName)
at FlowScriptEngineConsole.FlowSourceObjects.Console.WriteLineFlowSourceObject.In(FlowEventArgs e)
at FlowScriptEngine.FlowSourceManager.ProcessEvent(EventSet eventSet, FlowEventArgs eventArgs)

It's same result when I already set text in PPD Mod Setting. But it's look like system cannot find and string and return null to parse string.
Please Help