Fotos - cant open

Hello guys,

My Fotos wont open. It jus tries to prepare and it reaches around 13% and then it cant or wont go further. can someone please help me, as I want to transfer those pictures elsewhere. I hope I didn't lose them 😟 Please help if you know of a solution, and yes I did try to repair with disc utility, but it didnt work...it is still a problem... I am kinda worried as this probably means my computer has some kind of defect 😟 any help is appreciated. thank you