hkmkbled on "[Plugin: NextGEN Gallery] Can't add gallery to post"

Hi,

Since 2.0 update and up (I tried 2.0.18 beta too) I can not add gallery to post. I click on Add Gallery in a post, but it's just an empty on gallery list in Add Gallery tab...

Errors are:
http://shrani.si/f/2y/p7/8ggVH5R/screen-shot-2013-09-02-a.png
http://shrani.si/f/1U/up/1SKQs2jw/screen-shot-2013-09-02-a.png

What can I do?

Please help. I need to post a new post, guys are waiting for me.

http://wordpress.org/plugins/nextgen-gallery/