Sensor and bridge issue

Sometimes my sensor shows as if turned off.
Yesterday, it happened again, so I plug off and restarted and it came back but now asking me to update the cam firm.

So I update all the cams, and the app, now sensor is back on but it is not working at all.
Also the bridge is not recognized by cam!!!

Now what shall I do??? Anyone with same issue??
Please please help

Check here for bridge Trouble Shooting.