redirect after a question about product

-- url of the page with the problem -- : myautostyle.com/ (russian lang)
-- HikaShop version -- : 2.2.3 bus
-- Joomla version -- : 3.2.1
-- PHP version -- :5.3
-- Browser(s) name and version -- : google Chrome 32.0.1700.107 m
-- Error-message(debug-mod must be tuned on) -- : Error_message
Hi frends! I have a problem.
On the product page there is a button (ask about product).
Then go here index.php/hikashop-menu-for-categories-listing/product/contact/cid-1.html
We fill fields and Click OK. sent email where it is necessary but ...
Me do not redirect to the product and redirects the this link me do not redirect to the product and redirects the this link myautostyle.com/index.php/hikashop-menu-...listing/product.html
this page on my site is not. I get a blank screen. but I want to be redirected to the product page.
P.s.
Sorry for my english, it's not my native language.

1) joomla debug mode on in global configuration
2) log level max in global configuration
3) / php-bin / php.ini
display_errors = On
error_reporting = ~E_ALL

No display an error message on the page, I see a Blank page
in logs can only see messages INFO, for example about the failed logon.
this is normal
what I do wrong?

problem is solved, thank you)