Call to a member function getCfg() on a non-object in install.com_joomlastats.php on line 43

Call to a member function getCfg() on a non-object in install.com_joomlastats.php on line 43
это выходит при инсталяции через менеджер расширений компонента joomlastat!
Вот код!
43 {// detect if this is upgrade or install and get old version number
44 $query = 'SHOW TABLE STATUS FROM `' . $mainframe->getCfg( 'db' ) . '`'
45 . ' LIKE \'' . $mainframe->getCfg( 'dbprefix' ) .'jstats_configuration\''
... ;
... $JSDatabaseAccess->db->setQuery( $query );
... $rows = $JSDatabaseAccess->db->LoadObjectList();
46 if ($JSDatabaseAccess->db->getErrorNum() > 0)
47 $installationErrorMsg .= JTEXT::_( 'Some errors occured during the JoomlaStats installation process' ) . 'Error number: #1';



В чем может быть дело?