Quick Shopify Template Repair

I am in need of an experienced Shopify developer who can swiftly address some functionality bugs I am experiencing with my product/cart template. When variants are selected by the customer, the displayed price is not changing to reflect the correct pricing. Additionally, when adding to cart, the correct variant and pricing isn't being added.

Relevant files are attached. You will not have access to the live site, so you'll need to be able to repair this on your own local or dev site. Deliverables are the repaired files. Please be ready to complete this immediately.