Warning: Undefined variable $con in /confereneceLV/universal_code/dynamic/call.php on line 105
Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in /confereneceLV/universal_code/dynamic/call.php:105
Stack trace:
#0 /confereneceLV/universal_code/dynamic/call.php(105): mysqli_query()
#1 /confereneceLV/universal_code/recommended-global-conferences.php(3): include_once('...')
#2 {main}
thrown in /confereneceLV/universal_code/dynamic/call.php on line 105