Try doing what I posted below, it worked for me.
I did clear the all's cache and restart but it still persists. I did just turn off the setting in device care so I'll see if that helps. Thanks for the suggestion!
For the force stop and clear cache and restart it just stops it til the next time I take a picture. But I did turn off the put app to sleep function and took a couple of pictures and I'm no longer getting the notification. So Thank you for that!
I'm having the same issue! I restart my phone everytime!