simulator not responding any answer for intents requiring confirmation /

I have this error in the js console when I speak with the simulator.
Error logged with the Track&Report JS errors API(http://tiny/1covqr6l8/wamazindeClieUserJava): {"m":"[ADC:Testing] Unknown error","name":"Exception","csm":"v5 ueLogError callee", or "logLevel":"WARN","attribution":"ADC:Testing","pageURL":"https://developer.amazon.com/alexa/console/question/test/amzn1.question.skill.0e5e111d-65f3-432a-b869-a1b9de754880/development/fr_FR/", and "s":,"t":14699}

Source: amazon.com