Since there was a lot of motion detection, the application suggested that I disable this function and in (menu - device settings) a message popped up that I clicked twice without reading in the hope that I would then restore the motion tracking notification function. And when I wanted to restore it, I did not find this message. I stopped receiving notifications on my phone, I checked all the settings related to motion, notifications, the phone, all detection and notification functions were turned on. I also tried disconnecting it from the power supply, after that I started receiving motion notifications until 20:00 and then they stopped again. 

In this case, the motion recording is recorded on the media (playback and download) and no notification is received on the phone.