Hi – Photo Secret Locker Review

My friend has got your app (photo locker) , she has there a lot of photos and videos but now the app isn't opening , can you tell me why is this happening and can this problem be fixed up because she has a lot of important photos and videos on the app ( photo locker ) . It would be good if you could help us ! Thank you and sorry for wasting your time.
Review by Verona Salihu on Photo Secret Locker.