Warning: Undefined variable $mydb in /var/www/html/_main.6.3/_inc/user/SGC/importa_refresh_01.php on line 34

Fatal error: Uncaught Error: Call to a member function DoSelect() on null in /var/www/html/_main.6.3/_inc/user/SGC/importa_refresh_01.php:34 Stack trace: #0 {main} thrown in /var/www/html/_main.6.3/_inc/user/SGC/importa_refresh_01.php on line 34