Ligend,
Sorry for the delay. I missed your PM and post. I just got into your site and there are a few issues I've seen with your configuration of Open Graph Actions.
* The actions you created for Comment and Vote both do not have an "Action" defined. That's the main reason you're getting an error. You're trying to submit an 'empty' action to Facebook.
* Additionally, you've associated your Vote and Comment actions with a JomSocial Profile view. There really isn't anything to vote or comment on there, so that's not a good way to use Voting or Commenting. You should only associate those actions with your K2 Items, since those can be commented on and voted on.
* Finally, you've set the Action Type to "On Page Load". That means that when the page is simply viewed, the Vote and Comment actions will be submitted to the user's Timeline. You should change that to "Manual", which will then only trigger when the user has actually Voted on or Commented on the K2 Item.
Hope that helps. If you haven't already, I'd highly recommend fully going over our
Facebook Open Graph Actions for Joomla
configuration guide. It should help you to make sure you setting up and configuring your options correctly.
Thanks,
Alex