Content plugin for Easydiscuss

Hello,

I just bought EasyDiscuss and I can't make function Content plugin. The plugin is activated but :

1) First, I created a menu item to a joomla item and when I go on this item, the page looks like as the screenshot attached.

2) Secondly, how can I make it function with k2 ? In Content plugin, I tried to add "com_k2" this way : "com_content,com_easyblog,com_K2" but it doesn't work, K2 category don't appear in "Fetch articles from theses categories".

Thanks for your help,

Edgar