Night photo capture on A36

I recently purchased a Samsung Galaxy A36 (8GB/256GB) and separately bought the official Samsung 45W adapter (without cable). I am using the USB-C to USB-C cable that came in the phone's box with the 45W adapter.However, when I charge the phone using...

There is a strange transparent camera icon on the top right corner of my phonewhat it happens ? Plz any idea about it provide solutions of it!!!