Fix coupon in woocommerce and navigation fix

I am looking for a skilled developer to fix a coupon issue in WooCommerce and improve the navigation menu on my website.

Coupon Issue:
- The coupon code is not working properly and needs to be fixed.

Navigation Menu:
- The menu is not displaying correctly and needs to be adjusted.

Specific Design:
- I have a detailed plan for how I want the fixed navigation menu to look and function.

Skills and Experience:
- Experience with WooCommerce and coupon code troubleshooting
- Strong understanding of HTML, CSS, and JavaScript for fixing the navigation menu
- Ability to follow a detailed design plan for the menu implementation