Really need helo with taxonomy or event list by category

First of all, this plugin is so powerfull, amazing … but hard to use for developers … Or maybe just for me.

I got this page template
https://www.servidoreshosting.cl/ap/eventos/

At the left a filter for each event category printed by this code:

<ul>
                            <?php
                            $taxonomy = 'event-categories';
                            $tax_terms = get_terms($taxonomy);
                            foreach ($tax_terms as $tax_term) {
                            echo '<li>' . '<a href="' . esc_attr(get_term_link($tax_term, $taxonomy)) . '">' . $tax_term->name.'</a></li>';
                            }
                            ?>
                            </ul>

Also I print event list with this code:

<?php while ( have_posts() ) : the_post(); ?>
                <?php if (class_exists('EM_Events')) {
					echo EM_Events::output( array(
						'limit'=>8,
						'orderby'=>'name'
						) );
					} ?>
                <?php endwhile; ?>

All works fine here.

But … If I select an item from the filter to get only events from certain category … ufff … simply don’t work.
I have tried “taxonomy-event-categories.php” wich simply does nothing.
I have tried category-single.php inside THEMEFOLDER/plugins/events-manager/templates but can’t get event information that file maybe is to show categories … I’m gettin frustrating.

Can please anybody help me? I have been hours and hours looking for the answer or solution by myself but … ufff.

Thanks in advance!

https://www.ads-software.com/plugins/events-manager/