Error message subsequent publishing a post (edited with easyblog-composer)

Hello dear Stackideas Support Team!

I have installed your product on a dev server of my platform, and we plan to move on the live server once we completely understand hot to take most of it. We are trying to learn how to use and configurate it.

For now, we have faced 2 issues:

1)
What happen to me is the following: when I set the composer with "easy-blog composer", and try to edit a post, once I have completed the contents, and try to publish it, the system returns a message of error. the attachment is the screen shot of this message.


2)
close to the post' social icons there is a small bug, because a code symbole "> has always been present since installation. the second screenshot highligths this small bug.


Could you please give us an help?
Many thanks in advance, regards Fabrizio