I talked about this possibility - http://take.ms/a4Iqy

You can choose to display the featured threads below the navbar, is it not working on your site because of some conflict with this other add-on?

All works. I would like so - http://take.ms/hGzTf
Because of the module there is a mistake:

Database error in vBulletin 4.2.3:

Invalid SQL:

SELECT COUNT(*) AS thread_count, thread.postuserid
FROM thread AS thread
INNER JOIN featuredthreads AS featuredthreads
ON thread.threadid = featuredthreads.threadid
WHERE thread.postuserid =;

MySQL Error : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 5
Error Number : 1064
Request Date : Sunday, October 4th 2015 @ 02:34:59 AM
Error Date : Sunday, October 4th 2015 @ 02:34:59 AM
Script : http://primspinning.ru/external.php?type=RSS2

Hmm...that database error doesn't match the screenshot you posted. I really don't know what's going on in the screenshot either. Could you explain more fully?

Has written the personal message.
At creation of voting too there is a mistake

Did you put "featuredthread.php" in your root directory?

Yes.

Is the file "functions_databuild.php" in the "includes" folder?

Yes.

According to the error message I am getting when creating a poll, that file ("functions_databuild.php") cannot be found at the required location.