Edit legenda/framework/woo.php file. Find the following code cart->cart_contents_count, ETHEME_DOMAIN);?> and replace by this one cart->cart_contents_count, 'woocommerce');?>
After that translate “items” in woocommerce translation file. Check if it fix your issue. If not – contact us on support.8theme.com and create a ticket providing your admin panel and FTP accesses.
Regards 8theme Ltd