Accordion with acf repeater php template file

acf-repeater.php

<div class="accordion-wrapper">
    
    <?php if(get_field('repeater_root')): ?>
        <?php while(has_sub_field('repeater_root')): ?>

           <h2 class="headline accordion-title"><?php the_sub_field('repeater_heading'); ?></h2>

           <div class="accordion-panel">
               
            <?php if(get_sub_field('repeater_item')): ?>
                    <?php while(has_sub_field('repeater_item')): ?>

                        <div class="row download accordion-content">

                            <div class="col-md-8">
                                <a class="prezi-title" href="<?php the_sub_field('file'); ?> <?php the_sub_field('pdf'); ?>"><?php the_sub_field('title'); ?></a>
                            </div>

                            <div class="col-md-4">
                                <a href="<?php the_sub_field('file'); ?>" class="download"><i class="far fa-file-archive"></i><span>Download</span></a>
                            </div>

                        </div>
                        
                    <?php endwhile; ?>
                <?php endif; ?>
                
            </div>
        <?php endwhile; ?>
    <?php endif; ?>
</div>