Shopify Store Debugging for Coffee Business

My Shopify store for my coffee business has been experiencing issues for quite some time. The store does not show products if you search for them, and it also does not allow customers to complete a payment. I'm looking for a professional Shopify expert to check over my store and fix any errors.

Overall, I need the store thoroughly reviewed from start to finish, and I also need assistance with improving the color scheme. I definitely need help setting up social media accounts as well.

Key requirements:
- Expert in Shopify with experience in debugging
- Ability to enhance search functionality
- Proficient in resolving payment issues
- Ideally has e-commerce experience

Please note, I haven't made any significant changes to the store recently, and it has been a year since I started working on it without making a sale.