And here is the solution:

I am currently running PHP 7.3.18, since PHP 7.3 release you should use the function is_countable():

So we change line 212 from this:

$count2 = count($child_cats_child);

to this:

$count2 = is_countable($child_cats_child);

and that solves the issue of the uncaught error: Call to a member function.

I hope you can understand as I have come to understand. Thank you for your help.

Couple of problems here with that. First is the line for the code isn’t 101. It is 264. But if I were to go to 101, it would say this: if ( $count2 > 0 ){
and for context here is lines 97 through 106
//’taxonomy’ => //get children of this parent using the catID variable from earlier
);
$child_cats = get_terms( ‘product_cat’ ,$get_children_cats );
$count2 = count($child_cats);
if ( $count2 > 0 ){
echo ‘ <ul class=”dropdown-menu”>’;
foreach( $child_cats as $child_cat ){
//for each child category, get the ID
$childID = $child_cat->cat_ID;
$thumbnail_id2 = get_woocommerce_term_meta( $child_cat->term_id, ‘thumbnail_id’, true );
So I don’t think this is the correct line number that you are referring to. The original posting that I made talked about line 264, which is this:

<span class=”cart_icon”><i class=”fa fa-shopping-cart” aria-hidden=”true”><span class=”cart-no”><?php echo wp_kses_data( WC()->cart->get_cart_contents_count() );?></i></span></span>

I believe you are referring to line 264; however, your suggestion reads to replace the following: cart ) ? WC()->cart->get_cart_contents_count() : ”;?> with this line: cart->get_cart_contents_count() );?>

The problem with that is the original line doesn’t include that exact match. I have no line that begins with: cart) unless you are referring to the call for wp_kses_data, is that where I should start replacing from? Please help me to understand.