I want my old picture
Some people delete my app by mistake when I install again ther is no anything else in my app I want my pictures
Question marked as
If you were syncing photos with iCloud, have you checked iCloud.com/Photos using a computer browser to see if the photos are there?
If you weren't syncing with iCloud, do you have a backup you can restore from? Restoring from a backup erases all data currently on your device. Any data newer than when the backup was made will be erased. A restore is an all or nothing restore. You can't access a back and only restore certain files.
Backup - Restore your device from an iCloud or iTunes backup.