Huawei P9 Lite has problem with gallery?

Hi people The Huawei P9 Lite my mother has such a weird mistake when she takes pictures you can see them in the gallery in the "small view" normal but if you click on it comes a gray screen and in the middle is such a torn picture and after One night you can see in the small view of this torn picture

What is it and what can I do about it?

Where are your own pictures saved, on the SD card or the internal memory, and what kind of SD card is in the P9?

In internal memory

Ok, then it can't be a defect of the simcard.

You should download the camera app, and the gallery from the Playstore links and then test if it no longer comes to the error, both are free and without advertising

https://play.google.com/...opencamera

https://play.google.com/...ia.gallery