Why did the camera stop working after WIFI control?

Managed the camera Panasonic TZ100 via wifi, on the iphone. After some time of inactivity, the phone lost contact with the camera. The camera with the extended lens stopped responding. The camera does not turn off and does not turn on (the lens is extended). I noticed that the camera was warm.

What could it be? Some kind of glitch. Is there a global reset on the camera?