Universal CSV Import Fatal error

Universal CSV Import Fatal error

Hello
My name is Stefano Marelli and I’ve just buy the Universal CSV import version 3.5.2 for my web site made with Joomla 2.5
It's the first time that I use Joomshopping and commercial extension.

When I try to run the Universal CSV Import appear this error:
Fatal error: Class 'JModelLegacy' not found in /web/htdocs/www.stemare.it/home/joomla/administrator/components/com_jshopping/importexport/unicsvimport/unicsvimport.php on line 117


What’s wrong?

---

Aw: Universal CSV Import Fatal error

Help me!!!
There isn't a guide or online support?
I've buy this extension and I cannot use!

Aw: Universal CSV Import Fatal error

Update joomla to (minimum 2.5.8)

or use (Universal CSV Import 2.3.1)

---