I have similar problem with ver 22.214.171.124. It is a very strange problem. It seems like after placing the order, the browser won’t stay on the success page checkout/onepage/success/. The reason is that Mage_Checkout_OnepageController::successAction is being called twice. And in the second call, $session->getLastSuccessQuoteId() is null and so the browser is redirected to the cart page showing the item. However, the item in the cart will disappear if browser is refresh. And the confirmation email is sent as well as the backend showing the order is received......
Thks for your help Kiatng, but the problem was solved MOVING magento to Dedicated Server, after install into a new server and made the config changes the store works again, after install y try to finish a process like a GUEST ANNDDDDDD works with out problems, the problem was the shared hosting plan, for some reason magento TAKE to much memorie to finish the shopping process.
BUUUUUT one other problem was born :(........
When i try to create a NEW customer Magento show a white page with a array:
[entity_id] => 5
[firstname] => XXXXX
[lastname] => XXXXX
[email] => XXXX@XXXX.com
[password] => 1qaz1qaz
[confirmation] => 1qaz1qaz
[is_subscribed] => 1
[group_id] => 1
[store_id] => 1
[entity_type_id] => 1
[parent_id] => 0
[created_at] => 2010-11-16 16:04:06
[updated_at] => 2010-11-16 16:04:06
[created_in] => Tienda Español
[website_id] => 1
[password_hash] => 051d7ec922e48261afabe6f9306aa19d:wg
I search in google and magento chat, but no answer :(
Please some help to this poor man, who want to kill him self