Photos library does not show any photos but they are showing they are in photos from share photos.

When I open photos none of my photos are there.

I share photos with my Apple TV connected to my tv via air play.

When I do - system preference - sharing - media sharing and home sharing ticked - choose and all my photo folders are there are there. At the ‘ share photos from’ at the top - it’s has the photos app.

yet if I open photos app it looks like a brand new app never had photos in it.

How can I get my photos back into photos?