lost all albums from camera roll; even recently deleted photos

Hello ,

I lost all albums from camera roll, i can find photos only in tab "photos". I lost also recently deleted photos ,favorites and all other instagram and etc. photos.

when i delete some of my photos i think it moved in album deleted album. but i cant find this album that's why my memory is always full. But when i want send photo from viber i can see all of my albums as it was previously so i think they are not deleted.

please help me maybe someone know hot to solve problem.