One thing you can try is to install Blynk on a different mobile phone, or pad, and log in to your account. See if you receive notifications on a different phone. If not, it’s possible that the notification widget is for some reason removed. You can add it again — this is a widget available in Blynk. To add it, click the stop button in Blynk project to stop the OpenGarage project from running, click add to add the notification widget, then click on the play icon to re-run the project.