Let us go back to the basics:
How to redesign a web site to get more sales online?  Watch this video for your 6 most common website design mistakes. Fixing these common mistakes will help your website's usability, user interface, user experience, SEO, search engine optimization, email list-building signups, and product sales. These are all important to helping your e-commerce web site convert more customers to improve your sales.

Again and again these same errors come and it is really important that you fix them:

1) Your photos and graphics are too big
2) Your navigation menu and page titles don't use SEO keywords
3) Your products are not displayed above the fold on the home page
4) You have no "call to action" telling visitors what you'd like them to do
5) Your email collector is not prominently above the fold
6) Your About Us page lacks personalization and photos

Watch the full video below (Source)