Plugin wont show overview galleries

Hello,

I’ve used this plugin on other project without any problem but now I got a very strange issue. I can add a gallery, but when I go the overview page the plugin won’t show any of my galleries. I can add images without any problem, they are put into the database without any problem. But I need the overview list to delete certain galleries and just in general for practical use with clients…
Can anyone help me out please, see the pictures underneath to understand what I mean.

Empty overview
http://i58.tinypic.com/2d0nos5.png

My galleries
http://i58.tinypic.com/295re48.png

https://wordpress.org/plugins/gallery-images/