Hi I inserted a lot of stuff into a mysql databse.

But now I get an error in the prepare statement. I see Database prepare error. What am I doing wrong?

This is my Code:

$sql = "INSERT INTO
                Contact (IP,To,Name,Email,Subject,Text)
            VALUES 
                ( ?, ?, ?, ?, ?, ? )
           ";

    if (!$stmt = $db->prepare($sql)) {
        echo 'Database prepare error';
        exit;
    }

    $stmt->bind_param('ssssss', $ip_contact, $to_contact, $name_contact, $email_contact, $subject_contact, $text_contact);

    if (!$stmt->execute()) {
        echo 'Database execute error';
        exit;
    }

    $stmt->close();

My SQL table looks like this:

Contact:
- ID    int(11)    auto_increment    primary key
- IP    varchar(15)
- To    varchar(5)
- Name    varchar(20)
- Email    varchar(20)
- Subject    varchar(20)
- Text    varchar(600)