<?php
    session_start();
    $config = parse_ini_file('../database_config.ini'); 
    //Create Database connection
    $connection = mysqli_connect('localhost',$config['username'],$config['password'],$config['dbname']);

    if ($connection->connect_error) {
        die('Could not connect to db: ' . mysql_error());
    }


    $stmt = $connection->prepare("INSERT INTO report (reportID, userID, description, address, postalcode, latitude, longitude) 
    VALUES(0, 007, 'Major fire', 'Jurong Point', 640724, 1.640724, 103.640724)");

        $stmt->execute();
        echo "Error:\n";
        print_r($stmt->error_list);
        $stmt->close();

        $connection->close();
?>

Ошибка :Fatal error: Call to a member function execute() on boolean

Почему мое подготовительное заявление терпит неудачу?

Структура моегоreport Таблица