SLB Not working after Hosting change

Moved a site from a dev environment on Bluehost to a live URL on Hostway and now SLB has stopped working.

Here is the page that it is working on (bluehost):

https://prattarch.hay-wire.com/project/healthcare/

And here is where it is NOT working (Hostway):

https://prattarch.com/project/healthcare/

I am using an ACF repeater field with an ob_get_clean() for the content (code below)

<?php if(have_rows(‘project_gallery’)): ?>

<?php

$cntr = 0;

$row_cntr = 0;

;?>

<div class=”project-gallery-row cf”>

<?php while(have_rows(‘project_gallery’)) : the_row();?>

<?php

$cntr++;

$row_cntr++;

ob_start();

$image = get_sub_field(‘project_photo’);

$large_size = ‘project-two-third’;

$small_size = ‘project-one-third’;// (thumbnail, medium, large, full or custom size)

if( ! empty( $image ) ) {

// vars

$url = $image[‘url’];

$title = $image[‘title’];

$alt = $image[‘alt’];

$caption = $image[‘caption’];

// thumbnail

$large_size_image = $image[‘sizes’][‘large’];

$two_thirds_image = $image[‘sizes’][ $large_size ];

$one_third_image = $image[‘sizes’][ $small_size ];

$width_large = $image[‘sizes’][ $large_size . ‘-width’ ];

$height_lage = $image[‘sizes’][ $large_size . ‘-height’ ];

$width_small = $image[‘sizes’][ $small_size . ‘-width’ ];

$height_small = $image[‘sizes’][ $small_size . ‘-height’ ];

?>

<?php

if ($row_cntr === 2) {

$class = ‘last-project-image’;

} elseif ($row_cntr === 1) {

$class = ‘large-project-image’;

} elseif ($cntr%3 === 0) {

$class = ‘last-project-image’;

};

?>

<?php if ($row_cntr === 1):?>

<div class=”project-gallery-item m-all t-2of3 d-2of3 <?php echo $large_size;?>”>

” title=”<?php echo $title; ?>”>

<img src=”<?php echo $two_thirds_image; ?>” alt=”<?php echo $alt; ?>” />

</div>

<?php else:?>

<div class=”project-gallery-item m-all t-1of3 d-1of3 <?php echo $class;?>”>

” title=”<?php echo $title; ?>”>

<img src=”<?php echo $one_third_image; ?>” alt=”<?php echo $alt; ?>” />

</div>

<?php endif;?>

<?php } ?>

<?php

$content = ob_get_clean();

echo slb_activate($content);

?>

<?php

if ($row_cntr == 2) {

$cntr = 0;

echo ‘</div><div class=”project-gallery-row cf”>’;

}elseif ($cntr%3 == 0) {

$cntr = 0;

echo ‘</div><div class=”project-gallery-row cf”>’;

}

;?>

<?php endwhile;?>

</div> <?php // end project gallery row?>

<?php endif;?>

</section> <?php // end article section ?>

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