Default Template not updating

Hi,

Thanks for this plugin. I am try to update my won template but seems to be the template not updating. Even though I update template from database.

See below my custom template code.

<article class="card article excerpt__card  post type-post status-publish format-standard has-post-thumbnail hentry" >
                     <div class="post-content-wrapper-image">

                       <?php if (has_post_thumbnail()): ?>
                        <a>" data-lightbox-class="post-lightbox" data-lightbox-showpreloader="true">
                            <?php the_post_thumbnail( 'thumbnail', array('class' => '') ); ?>
                        </a>

                        <a>" data-lightbox-class="post-lightbox" data-lightbox-showpreloader="true">
                            <?php the_post_thumbnail( 'medium', array('class' => '') ); ?>
                        </a>

                        <?php endif; ?>
                    </div> 

                    <div class="post-content-wrapper">

                        <div class="post-content <?php if ( ! is_sticky()) echo 'fade-to-white'; ?>">

                            <header class="list_post_title">

                                <h2 class="copy--h1"><a>" class="js-lightbox-toggle" data-lightbox-class="post-lightbox" data-lightbox-showpreloader="true" title="<?php the_title(); ?>"><?php echo get_the_title(); ?> </a></h2>

                            </header>

                            <header class="mobile_list_post_title">

                                <h2 class="copy--h1"><a>" class="js-lightbox-toggle" data-lightbox-class="post-lightbox" data-lightbox-showpreloader="true" title="<?php the_title(); ?>">
                                    <?php   echo  $result = substr(get_the_title(), 0, 105);?>... </a></h2>

                            </header>

                            <div class="post-footer">
                                    <?php the_post_tax_links( get_the_ID() ); ?>
                             </div>
                             <div class="post-read-more">
                                   <a>">Read more...</a>
                             </div>

                    </div>

            </article>

https://wordpress.org/plugins/ajax-load-more/