Loading Events CPT Posts as ACF Block

block.php

<?php
/**
 * Events CPT Block
 *
**/

// Create id attribute allowing for custom "anchor" value.
$id = 'pm-' . $block['id'];
if( !empty($block['anchor']) ) {
	$id = $block['anchor'];
}

// Create class attribute allowing for custom "className" and "align" values.
$className = 'block-pm';
if( !empty($block['className']) ) {
	$className .= ' ' . $block['className'];
}
if( !empty($block['align']) ) {
	$className .= ' align' . $block['align'];
}

// Variables
$number_of_events = get_field( 'number_of_events' );
// print_r($number_of_events);
$terms = get_field('events_category');
$term_slugs ='';
foreach ( $terms as $term ):
    $term_slugs .= "'" . esc_html( $term->slug ) . "'" . ',';
    endforeach;
$term_slugs = substr($term_slugs, 0, -1); //Removes very last comma.
// echo $term_slugs;
// local,virtual,

$args = array(
    'post_type' => 'event',
    'posts_per_page' => $number_of_events,
    // 'event_category' => $term_slugs
    'tax_query' => [
        'taxonomy'         => 'event_category',
        'include_children' => false,
        'field'            => 'name',
        'terms'            => array($term_slugs),
    ],
);
$the_query = new WP_Query( $args ); ?>

<?php if ( $the_query->have_posts() ) : ?>

    <?php while ( $the_query->have_posts() ) : $the_query->the_post(); ?>
        <h2><?php the_title(); ?></h2>
    <?php endwhile; ?>

    <?php wp_reset_postdata(); ?>

<?php endif; ?>