[SOLVED] Confirm order goes to blank index.php with paypal

[kumar16]

This is very troubling. I had my cart set up for testing with paypal sandbox and it was fine, even did multiple transcations and got conformation emails and everything. But for some reason, now, when i click on confirm order in the last page of the checkout, it comes to a blank page at index.php (its http://mysite.com/index.php, when i do view source, there is no code there). Please any help is greatly appreciated, we are supposed to go live in a week and this happens!

Does any one have any ideas? if you have a similar problem, please reply to the thread. Maybe someone will be able to shed some light. Working on this for more than 4 months and now the entire site is useless, the only thing i can think of it to scrap and reinstall entire virtuemart. Any, i mean ANY clue will be of GREAT help. Thank you!

[kumar16]

I noticed this pattern, but do not know what to make of it, someone with some knowledge on this, could possible use this information to help solved the problem.

When i go to my cart, my url reads:
http://www.mysite.com/home/index.php?page=shop.cart&option=com_virtuemart&Itemid=48

when i hit checkout, i go to step 1 of check out and my url reads:
http://www.mysite.com/home/index.php?page=checkout.index&option=com_virtuemart&Itemid=48&redirected=1&Itemid=48

when i hit next, i go to step 2 (i use usps and get all the rates from usps without any probs), my url reads:
http://www.mysite.com/home/index.php
(note above that although it says index.php my page shows the actual select shipping view with rates from usps (my shipping selection))

when i hit next, i got to step 4 (i use paypal,so it skips step 3) and i get this url:
http://www.mysite.com/home/index.php?page=checkout.index&payment_method_id=4&ship_to_info_id=01463c0010ae83a0b29fc6e470dc5a07&shipping_rate_id=uspsv4%257CUSPS%257CExpress%2BMail%257C23.9&checkout_stage=4&option=com_virtuemart&Itemid=48

when i hit confirm order, now, it goes back to :
http://www.mysite.com/home/index.php
(this time its just a blank page, i reload it i get to my homepage)

See how its going to index.php every other step? I really hope using this information someone, anyone can shed some light on this issue. We are supposed to go live in a week and way it looks like, i really do not know what else to do, seems like everyone who has this problem, there is no solution. I had modified some core files earlier, but i replaced everyone of them with original installation files, and still am not been able to solve this issue. Even pointing out to a particular file to see, will be of great help at this point.

[kumar16]

I finally managed to solve this problem with some help. Turns out that 2 plugins were causing conflict with url generation (jsecure authentication and jfirewall). If you have these, try turning them off and on or just leave them off.