Old iPhoto library crash when trying to open in Photos
I have an old iPhotos library from a Time Machine backup on an old macbook. I put into my pictures folder on my current mac, and tried to open it by holding options key and choosing the iPhoto library. It starts loading in photos for a long time, but when it reaches around 70% it crashes. The iPhoto library is 71 gb, but there is 174 gb available on my mac. I can't access this library at all, does any one know how to fix this?
MacBook Pro with Retina display