Error message not showing for Contact Form 7

[Mcblommie]

Hi

I am having some trouble with Contact Form 7’s error message.

I created duplicate check using “shortcodes, actions and filters”.

    function is_already_submitted($formName, $fieldName, $fieldValue) {
    require_once(ABSPATH . 'wp-content/plugins/contact-form-7-to-database-extension/CFDBFormIterator.php');
    $exp = new CFDBFormIterator();
    $atts = array();
    $atts['show'] = $fieldName;
    $atts['filter'] = "$fieldName=$fieldValue";
    $atts['unbuffered'] = 'true';
    $exp->export($formName, $atts);
    $found = false;
    while ($row = $exp->nextRow()) {
        $found = true;
    }
    return $found;
}

function my_validate_email($result, $tag) {
    $formName = 'Referral Gift Form'; // Change to name of the form containing this field
    $fieldName = 'dynamicname'; // Change to your form's unique field name
    $errorMessage = 'This reference number has already been used'; // Change to your error message
    $name = $tag['name'];
    if ($name == $fieldName) {
        if (is_already_submitted($formName, $fieldName, $_POST[$name])) {
            $result->invalidate($tag, $errorMessage);
		}
    }
    return $result;
}

    add_filter('wpcf7_validate_dynamictext', 'my_validate_email', 10, 2);

The error message does not want to display.
I am guessing something in the theme is overriding the error message.

Can you please assist?
Any advice will be greatly appreciated.

Kind regards
Madelein

Ticket