Sunfounder-controller Cannot connect to wifi

I have a problem with my Pidog. Everything was working but now after installing it anew my App cannot find the Mydog wifi.With sudo the dog works but I want to control it by app. What can I do?

We suggest providing a video of the issue to help us analyze and resolve it.

Is your Pidog configured to a WiFi network? Please connect your Pidog to the WiFi network and then try using the app for control.