ULTIMATE inventary Track Problem

I am using a trial version of the Ultimate Store 3, When I check inventary track option on setting page, the front store get error as error_ocorred.

My site is http://brindes.blog.br

Hello, reginaldohiga!

The issue requires the investigation on your server. Please send us an e-mail to sales@cs-cart.com with the access to your server and we will be glad to help you.