Xmap - Hikashop Plugin problem

When i enable the "Xmap - Hikashop Plugin" i get the following error when i open the sitemap page from any browser:
This XML file does not appear to have any style information associated with it. The document tree is shown below.
and the rest page is blank in the sitemap page
any ideas?

(if i limit the search categories to 4 it works fine )
(if i check the hikashop default menus in options page it dosent work at all. It opens a blank page )

Joomla 2.5.6
Xmap 2.2.1
xmap_hikashop_2

www.fortotikh.gr/index.php?option=com_xm...&tmpl=component&id=1 is the link to sitemap. i have limit the categories to 4, to work.

Hi there,

It's working when I try with any browser.
It's a little bit long to load the page but it's understandable since you have A LOT of categories.
If you are still experiencing this issue, give me a screenshot of your xmap configuration and of the error.