WordPress MU

I do not know the cause of the problem
Show me the following message
-----------------------------------------------------
The blog you have requested is not installed properly. Please contact the system administrator.
----------------------------------------
Do you know the cause of the problem?

Look at these blogs

http://amd79.myali.net/
http://sunset.myali.net/

Is WordPress MU installed properly? The code that causes that message is in wp-settings.php:

if ( !is_blog_installed() && !defined('WP_INSTALLING') ) {
die( __( 'The blog you have requested is not installed properly. Please contact the system administrator.' ) ); // have to die here ~ Mark
}

thank you richardxthripp

yes, WordPress MU installed properly

i searched for table to this blog in phpmyadmin and i don't find the tables there

any idea about that