Hi @Paweł5555, let me see if I can help out here!
If you have not made a backup of the photos before they got deleted, I am afraid that it might be hard to retrieve them due to the fact that there is no "recycle bin" that they end up in when you delete them. One thing that you can try is to check is if the photos have been automatically backed up to Google photos. If not, I am afraid that there is no way to retrieve the deleted photos.
I hope that helped!
