This plugin is marketed as doing a lot, it does very little well. As the product has developed with later release (3.8x) it has gotten more unstable. DON’T USE THIS PLUGIN!!!! It does not perform well across browsers, you will rely on the forum for any real features as not much is built into the product itself. The developers have no clue,nor do they seem have a road map, every upgrade I have attempted has gone badly. You will find yourself needing to edit the php and plugin code to fix everything that isn’t working (which is a lot). If you are looking to run an online store this is not an option as your time will be taken up troubleshooting and not earning money.
I’ve jumped ship to CS Cart, it works out of the box, if you don’t want SEO then use the free version.