Fichier non disponible ! FIX

I have modified the plugin by:
in order to fix the message Fichier non disponible !
https://feed.evangelizo.org/v2/reader.php returns an error 500 when displaying the Saint:

 public function widget($args, $instance)
    {
        echo $args['before_widget'];

        if (!empty($instance['title']))
            echo $args['before_title'] . apply_filters('widget_title', $instance['title']) . $args['after_title'];

        $date = date_i18n('Ymd');
        $type = ($instance['type'] != '') ? esc_attr($instance['type']) : '';
        $lang = ($instance['lang'] != '') ? esc_attr($instance['lang']) : '';
        $cont = ($instance['content'] != '') ? esc_attr($instance['content']) : '';
        $publicite = $instance['publicite'];
        $url = "https://feed.evangelizo.org/v2/reader.php?date=" . $date . "&type=" . $type . "&lang=" . $lang . "&content=" . $cont;
        $context = stream_context_create(array(
            'http' => array(
                'ignore_errors' => true
            )
        ));

        if (!$h = fopen($url, 'r', null, $context)) {
            // Fichier non disponible
            echo "<span style='color: #FF0000; font-weight: bold;'>Fichier non disponible !</span> " . $url . "<br />";
        } else {
            $str = '';
            while (!feof($h)) {
                $str .= fgets($h);
            }
        }
        if ($type === "saint") {
            $str = str_replace("/v2/", "https://feed.evangelizo.org/v2/", $str);
        }

        // Debug
        // echo $url . "<br />";
        // echo '<p>Réponse : </p><p style="width: 800px; display: block;">' . htmlspecialchars( $str ) . '</p>';

        // Réponse
        echo '<p>' . $str . '</p>';

        echo '<p class="evangelizo-org">';
        echo ($publicite == true) ? __('Free service provided by <a href="https://www.evangelizo.org/" target="_blank">Evangelizo.org</a>.', 'saint-du-jour-reloaded') : '';
        echo '</p>';

        echo $args['after_widget'];
    }