Login Module problem

[Maniacs]

I use Joomla 1.0.13 and SMF 1.1.4, bridge version 2.0.2.1

On my site i use SMF Login module (2.0.4) and have problem sometimes
Errors

Warning: opendir(/var/www/virtual/xxxxxx.com/htdocs/administrator/components/com_smf/cache/db/cache_3/) [function.opendir]: failed to open dir: Permission denied in /var/www/virtual/xxxxxx.com/htdocs/administrator/components/com_smf/includes/Lite.php on line 611

How I can fix this??

[Orstio]

You will find better support for the joomlahacks integration at joomlahacks.com.