side bar and sorting drop down menu not working on mobile

Hi, thank you for the wonderful plugin!

I hope someone can help my mistake..

When I set up the product page, my client didn’t want the sidebar on the product archive section, so I went to

woocommerce/templates/archive-product.php
and
woocommerce/templates/single-product.php

and deleted:
<?php
/**
* woocommerce_sidebar hook
*
* @hooked woocommerce_get_sidebar – 10
*/
do_action(‘woocommerce_sidebar’);
?>

from the edit. Worked fine, however my client wanted to show categories of product later on, so I went back to those php pages and added the exact code back in.
It seems working on the computer display just fine, however when I access to product achieve page from mobile, not only the sidebar (product categories in this case,) is not showing, but also the sorting option (dropdown menu) is inactive–meaning you can see the dropdown bar, but you can’t choose anything.

here is my website in progress,
http://www.sweetiecupteahouse.com

if you can give me advice on this issue it would be much appreciated.

thank you so much for your time!

https://wordpress.org/plugins/woocommerce/