Trouble when use free version

Hello support,

I have installed your plugin on a website.
I saw that your plugin is not free, but if I search for the plugin with the Find a plugin form from WordPress, it is written free.

When I install it for free, I can set the plugin but the user online can’t edit a product.
I just added a link with this ticket to let you check my result.

The page I need help with: [log in to see the link]