Thank you for contacting us.
Please check if you need to clear cache at back-end.
Also, please make sure that your products are In Stock and have quantity more than 0.
In case issue remains for you, please contact us via e-mail at:
http://support.emagicone.com/
and provide us with your store connection configuration (you can save it at Preferences[F12] / Actions / Save current configuration), admin access to your store and examples of the products that are not shown at frontend, so we could check what caused the issue for you.
Waiting to hear from you