EE4 Events table language using tags

<?php
// Options
$date_format        = get_option( 'date_format' );
$time_format        = get_option( 'time_format' );
// Load Venue View Helper
EE_Registry::instance()->load_helper('Venue_View');
//Defaults
$reg_button_text        = !isset($reg_button_text) ? __('Register', 'event_espresso') : $reg_button_text;
$alt_button_text        = !isset($alt_button_text) ? __('View Details', 'event_espresso') : $alt_button_text;//For alternate registration pages
$sold_out_button_text   = !isset($sold_out_button_text) ? __('Sold Out', 'event_espresso') : $sold_out_button_text;//For sold out events
if ( have_posts() ) :
    // allow other stuff
    do_action( 'AHEE__espresso_events_table_template_template__before_loop' );
    ?>

    <?php if ($category_filter != 'false'){ ?>
    <p class="category-filter">
        <label><?php echo __('Category Filter', 'event_espresso'); ?></label>
        <select class="" id="ee_filter_cat">
        <option class="ee_filter_show_all"><?php echo __('Show All', 'event_espresso'); ?></option>
        <?php
        $taxonomy = array('espresso_event_categories');
        $args = array('orderby'=>'name','hide_empty'=>true);
        $ee_terms = get_terms($taxonomy, $args);
        foreach($ee_terms as $term){
            echo '<option class="' . $term->slug . '">'. $term->name . '</option>';
        }
        ?>
        </select>
    </p>
    <?php } ?>

    <?php if ($footable != 'false' && $table_search != 'false'){ ?>
    <p>
        <?php echo __('Search:', 'event_espresso'); ?> <input id="filter" type="text"/>
    </p>
    <?php } ?>

    <table id="ee_filter_table" class="espresso-table footable table" data-page-size="<?php echo $table_pages; ?>" data-filter="#filter">
    <thead class="espresso-table-header-row">
        <tr>
                <th class="th-group"><?php _e('Date','event_espresso'); ?></th>
                <th class="th-group"><?php _e('Day','event_espresso'); ?></th>
                <th class="th-group"><?php _e('Time','event_espresso'); ?></th>
                <th class="th-group"><?php _e('Course','event_espresso'); ?></th>
                <th class="th-group"><?php _e('Language','event_espresso'); ?></th>
                <th class="th-group"><?php _e('Price','event_espresso'); ?></th>
            <th class="th-group" data-sort-ignore="true"></th>
        </tr>
    </thead>
    <?php if ($footable != 'false' && $table_paging != 'false'){ ?>
    <tfoot>
        <tr>
            <td colspan="4">
                <div class="pagination pagination-centered"></div>
            </td>
        </tr>
    </tfoot>
    <?php } ?>
    <tbody>

    <?php
    // Start the Loop.
    while ( have_posts() ) : the_post();
        // Include the post TYPE-specific template for the content.
        global $post;
        //Debug
        //d( $post );

        //Get the category for this event
        $event = EEH_Event_View::get_event();
        if ( $event instanceof EE_Event ) {
            if ( $event_categories = get_the_terms( $event->ID(), 'espresso_event_categories' )) {
                // loop thru terms and create links
                $category_slugs = '';
                foreach ( $event_categories as $term ) {
                    $category_slugs[] = $term->slug;
                }
                $category_slugs = implode(' ', $category_slugs);
            } else {
                // event has no terms
                $category_slugs = '';
            }
        }
        //Create the event link
        $external_url       = $post->EE_Event->external_url();
        $button_text        = !empty($external_url) ? $alt_button_text : $reg_button_text;
        $registration_url   = !empty($external_url) ? $post->EE_Event->external_url() : $post->EE_Event->get_permalink();

        //OA Add: Language
        $languages = get_the_tags();



        //Create the register now button
        $live_button        = '<a class="register-button" id="a_register_link-'.$post->ID.'" href="'.$registration_url.'">'.$button_text.'</a>';
        if ( $event->is_sold_out() || $event->is_sold_out(TRUE ) ) {
            $live_button    = '<a id="a_register_link-'.$post->ID.'" class="soldout-button" href="'.$registration_url.'">'.$sold_out_button_text.'</a>';
        }

        $datetimes = EEM_Datetime::instance()->get_datetimes_for_event_ordered_by_start_time( $post->ID, $show_expired, false, 1 );
        $datetime = end( $datetimes );

        $startdate = date_i18n( $date_format, strtotime( $datetime->start_date_and_time('Y-m-d', 'H:i:s') ) );
        $starttime = date_i18n( 'G:i', strtotime( $datetime->start_time('H:i:s') ) );
        $endtime = date_i18n( 'G:i', strtotime( $datetime->end_time('H:i:s') ) );

        // grab array of EE_Ticket objects for event
        $tickets = espresso_event_tickets_available( $post->ID, FALSE, FALSE );
        // grab first ticket from array
        $ticket = array_shift( $tickets );
        $ticket_price = $ticket instanceof EE_Ticket ? sprintf("%0.2f",$ticket->ticket_price()) . '<span class="currency-code"> (CHF)</span>' : '';
        $ticket_price_data_value = $ticket instanceof EE_Ticket ? $ticket->price() : '';
        $tickets_price_free_check = $ticket_price_data_value == 0 ? __('Free','event_espresso') : $ticket_price;
         // OA Add so that it doesn't show free for full events
         $tickets_price_free_check = (string)$ticket_price_data_value == '' ? __('Sold Out','event_espresso') : $tickets_price_free_check;

         // grab primary datetime for event
         $first_datetime = espresso_event_date_obj( $post->ID );
         $tickets_left = $first_datetime instanceof EE_Datetime ? $first_datetime->tickets_remaining() :   0;
         $tickets_left = $tickets_left === INF ? __('unlimited','event_espresso') : $tickets_left;
        ?>
        <tr class="espresso-table-row <?php echo $category_slugs; ?>">
            <td class="start_date event-<?php echo $post->ID; ?>" data-value="<?php echo strtotime( $startdate ); ?>"><?php echo $startdate; ?></td>
            <td class="day_of_week event-<?php echo $post->ID; ?>"><?php espresso_event_date_range( 'l', ' ', 'l', ' ', $event->ID() ); ?></td>
            <td style="text-align:center" class="time event-<?php echo $post->ID; ?>"><?php echo $starttime ; ?> - <?php echo $endtime ; ?></td>
            <td class="event_title event-<?php echo $post->ID; ?>"><?php echo $post->post_title; ?></td>
            <td style="text-align:center" class="languages-<?php echo $post->ID; ?>">
            <?php
                if( $languages ) {
                    echo '<ul class="languages">';
                    foreach ($languages as $lang) {
                        echo '<li>' . $lang->name . '</li>';
                    }
                    echo '</ul>';
                }
            ?>
            </td>
            <td style="text-align:center" class="starting_from_pricing event-<?php echo $post->ID; ?>"><?php echo $tickets_price_free_check; ?></td>
            <td style="text-align:center" class="td-group reg-col" nowrap="nowrap"><?php echo $live_button; ?></td>

        </tr>
        <?php
    endwhile;
    echo '</table>';
    // allow moar other stuff
    do_action( 'AHEE__espresso_events_table_template_template__after_loop' );
else :
    // If no content, include the "No posts found" template.
    espresso_get_template_part( 'content', 'none' );
endif;