Multi db plugin installation issue

Hi
We are using Multi-db plugin But we are facing problem that error
Notice: Undefined index: table in /var/www/html/wp-content/scripts/move-blogs.php on line 33 Fatal error: Call to undefined function mysql_connect() in /var/www/html/wp-content/scripts/move-blogs.php on line 35
looking here
and Server error

500
looking on home page
please help me

Thanks