Hi @PLind, let me see if I can help out here.
Your post has been translated to English as this is an International forum, please post any replies in English and it will be easier for me and other users to assist you.
I am afraid that it might be hard to retrieve the deleted photos due to the fact that there is no "recycle bin" in the album app that they end up in when they are deleted from the internal storage. The only way to retrieve the photos is if they have been backed up to Xperia Companion or to Google photos
If you have made a backup of your phone to Xperia companion, you can use the restore function in order to restore the photos on your phone. For more information on how to restore a backup using Xperia Companion, click here. You can also check if the photos have been automatically backed up to Google photos by simply logging in using your Google credentials.
Let me know if that helped!
