Upgrade: Problem when update vbDrupal

[perfectsense]

Hello.
I try to update vbDrupal from 5.12 to 5.21
When i run update.php an error appear:
The update process was aborted prematurely while running update # in .module. All other errors have been logged. You may need to check the watchdog database table manually.

and i got this in watchdog:

require_once(./sites/all/modules/views/views_cache.inc) [function.require-once]: failed to open stream: No such file or directory в файле /home/www/htdocs/sites/all/modules/views/views.module в строке 622.

After that i got updated vbDrupal (version 5.21) in status report, but:

On all forum pages i see this warning:
Warning! You need to run the Drupal update script to finish the update/installation of vbDrupal.

and in my DB i see more than 6000 temporary tables with size=0

It seems that all working properly on site and forum, but i`m afraid.

[perfectsense]

I edit file views.module like in this post:
http://drupal.org/node/184652#comment-685274
and after that update process finished properly, without errors.
There is no errors in status log and forum pages? but what must i do with all this 6000 DB temporary tables?
What if i`ll just kill`em all?

[Wolfmark]

Hmm, do you use persistent database connections?

vbDrupal is using vBulletin for working with database, so you can look into includes/config.php file from vBulletin for usepconnect option.

[perfectsense]

Well, i delete all that tables and everything is all right...
And my usepconnect option is set to 0.

PHP Code:

$config['MasterServer']['usepconnect'] = 0;
$config['SlaveServer']['usepconnect'] = 0; 


Result of my googling tell me this is ooooooold vBulletin bug
Thank you for your reply, and sorry for my bad English