Hi @renee
It seems that you forgot to close the if logic. Could you please try this code:
<?php if( get_row_layout() == 'hero_images' ) { ?>
<header class="container-fluid photo-box" style="background: url(<?php the_sub_field('hero_image'); ?>) no-repeat center center fixed;">
<div class="fore-image" style="background: url(<?php the_sub_field('fore_image'); ?>) no-repeat center;"></div>
</header>
<?php } ?>
Hope this helps 🙂
