HIKVISION Cameras being turned off ?

I wonder if I am alone with this problem or if others are have the same problem , From past experience when they do a firmware update and you dont update they turn off my number 7 camera and you need to restart your system again .However when you have updated your Camera and NVR firmware all is well again .This time however they are still turning off my number 7 camera .
Here is a log over the past month : -
Off 09:15 PM 03.06.2020
Off 11:45 AM 23.06.2020
Off 11:50 AM 25.06.2020
Off 14:50...

HIKVISION Cameras being turned off ?