urbanAtomic Exception

Exception Type: Error
Occurance: /var/www/vhosts/drg.de/httpdocs/site/mod/programm2013/frontend.php in Line 9

Call Stack :
#0 /var/www/vhosts/drg.de/httpdocs/site/index.php(465): programm2013_getHTML()
#1 {main}

Error Message: Call to undefined function mysql_escape_string()