Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, null given in /homepages/32/d515170087/htdocs/ambasador.php:5 Stack trace: #0 /homepages/32/d515170087/htdocs/ambasador.php(5): mysqli_num_rows(NULL) #1 /homepages/32/d515170087/htdocs/ambasador.php(26): mysqli_result(NULL, 0, 0) #2 {main} thrown in /homepages/32/d515170087/htdocs/ambasador.php on line 5