does not work with the_sub_field (ACF) / get_template_part ()

I have a website with ACF fields and content parts. Unfortunately, it doesn’t work and no glossary links are displayed. Even after I bought the PRO version it doesn’t work. Here is the code snippet that is involved.

<?php
	if (have_posts()) : while ( have_posts()) : the_post();
?>
		<div class="post" id="post-<?php the_ID(); ?>">
			<div class="wrapper headline-<?php echo get_field('inhaltsblocke')[0][acf_fc_layout]; ?>">
<?php
				if(get_field('seitenuberschrift')) {
?>
					<h2><?php the_field('seitenuberschrift'); ?></h2>
<?php
				}
?>
			</div>
<?php
			if( have_rows('inhaltsblocke') ):
				while ( have_rows('inhaltsblocke') ) : the_row();
					if( get_row_layout() == '1-spalter' ): get_template_part( 'part/part', '1-spalter' );
					elseif( get_row_layout() == '2-spalter' ): get_template_part( 'part/part', '2-spalter' );
					elseif( get_row_layout() == '3-spalter' ): get_template_part( 'part/part', '3-spalter' );
					elseif( get_row_layout() == 'bildunterbrechung' ): get_template_part( 'part/part', 'bildunterbrechung' );
					elseif( get_row_layout() == 'leistungen' ): get_template_part( 'part/part', 'leistungen' );
					elseif( get_row_layout() == 'team' ): get_template_part( 'part/part', 'team' );
					elseif( get_row_layout() == 'teaser' ): get_template_part( 'part/part', 'teaser' );
					endif;
				endwhile;
			endif;
?>
		</div>
<?php
	endif;
?>

Can you help me please?