Esp32 with a Vc0706 cam issue

Hello.

I’ve done a hardware prototype to take photos every 15 minutes and send it to a web server.

After several cycles of operation, the esp32 send me the following type of cropped photo and stop sending pics.

pic.php (1)

I don’t know why.
I’ve seen a YouTube video speaking about heating problem on the esp. What can I do to improve this heating issue…? :thinking:.

Thanks.
F.