Odoo 16.0 enterprise hosted on .sh: implement quantity discounts on ecommerce

I am urgently looking for an odoo-developer who is able to implement in our ecommerce the display of quantity discounts for products. I have bought also https://apps.odoo.com/apps/modules/16.0/website_show_pricelist_offer/ but it gives errors in github implementation.

If you are an odoo expert and is able to help us out today, please send your offer.