Hi,
Enjoy to see that I finally can access to this forum..Thank's.
So I explain one more time py problem.
First my Order id : Invoice n°20973 Joomsef3+VM extension
So, everything is ok, my SEF urls are cleans but...
In the last step of checkout order, ONLY for THE payment by CB, when we click on "CONFIRM" it take a very long time to go on a..white screen or sometimes in my 404 error page. At this moment all the urls of the web site incoming on 404 !. I have to turn Joomsef OFF and clear the cache to return normal.
The incriminated url is :
index.php?page=checkout.thankyou&checkout_last_step=4&option=com_virtuemart&Itemid=1.
This page is censed to go to a page where user choose his type of CB (I use SIPS payement/ATOS).
In the configuration, I turn checkout process OFF.
Thank's by advance.
LP.