Delonghi Idea Help Delonghi BCO120T Troubleshooting!!?

Help Delonghi BCO120T troubleshooting!!? - delonghi idea

My new combination will not work BCO120T Delonghi Drip Coffee / Espresso correct. I have during the week and every morning, had worked well. This morning, a coffee filter does not work. When I will press the button to start pouring in flashes of light. Has anyone any idea why could that be? Thank you for your help. I know it could be something stupid, because this is the first time that I have more of a database of old coffee. The manual is not really doing much, if anything goes wrong. Thank you again.