Fieldmanager_Field::_failed_validation PHP Method

    protected function _failed_validation($debug_message = '')
    {
        if (self::$debug) {
            throw new FM_Validation_Exception($debug_message);
        } else {
            wp_die(esc_html($debug_message . "\n\n" . __("You may be able to use your browser's back button to resolve this error.", 'fieldmanager')));
        }
    }