Hello.

The Free edition has some limitations, including number of products. You can see more info in our feature matrix. Due to this, you may not be able to use some functionality on our sample web sites, which are not designed for Free edition. To fix it, please send me and e-mail to support@kentico.com and refer to this forum thread. I will provide further help. Thank you.

Best Regards,
Radek Macalik