Media library not working

Hello,

I was uploading some photos to my new website and suddenly we had a power failure. After that, when I tried to check my media library later, it just keeps loading but photos do not appear. When I tried to add media to a post, the ADD MEDIA button just doesn’t work. Any help to fix this will be highly appreciated.
My site is hikershaven.org

https://www.dropbox.com/s/36hhmj2c120cz2f/Screen%20Shot%202015-06-17%20at%204.23.44%20PM.png?dl=0

Thank you.