clicking on shipping method twice --> Checked out

-- url of the page with the problem -- : iteplus.es/estudiohr/mpp/index.php?optio...ep&step=1&Itemid=123
-- HikaShop version -- : 2.2.2
-- Joomla version -- : 2.5.14
-- PHP version -- : 5.3.16
-- Browser(s) name and version -- : all browser with same behaviour

Products list
iteplus.es/estudiohr/mpp/index.php?optio...t=listing&Itemid=161
user: test
pw: test

add some products to chart then go to
iteplus.es/estudiohr/mpp/index.php?optio...ep&step=1&Itemid=123

ERROR
choosing "shipping method" (spanish "Forme de envío")
first click: nothing happens
second cick: chechout finished without clicking on "Check out"
(Sometimes following text appears: Notice: Trying to get property of non-object in /homez.655/iteplus/www/estudiohr/mpp/templates/rt_afterburner/html/com_hikashop/checkout/cart.php on line 130)

This error also appears when I deleted all vew overrides.

Please, could you have a look, please? Thank you!

Hi,

Can you :
1. Download the last hikashop version through our website, install it, and test it again ?
2. Change your front-end template and choose a Joomla default template, and test it again ?
3. Try it without your views customization ?

That sounds a lot like our logout problems!
www.hikashop.com/forum/checkout/862503-l...heckout-payment.html

Ok, so like I told him to can you :

1. Download the last hikashop version through our website, install it, and test it again ?
2. Change your front-end template and choose a Joomla default template, and test it again ?
3. Try it without your views customization ?