Warning: Undefined variable $conn in /confereneceLV/universal_code/inc/acs_cn.php on line 12
Connection failed:
Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, array given in /confereneceLV/universal_code/eposter.php:14
Stack trace:
#0 /confereneceLV/universal_code/eposter.php(14): mysqli_num_rows()
#1 {main}
thrown in /confereneceLV/universal_code/eposter.php on line 14