404 error after checkout step 4 URGENT

[alish]

Hi, I face 404 error (page not found) after final confirm order (confirm button in check out step 4)
I wonder the address it show's even doesn't exist in my server: (http://www.osplant.com.au/website/plants-shop)

Actually this address exist: http://www.osplant.com.au/website/index.php/plants-shop

But I don't think even above address true because I set up my payment method only on paypal and before this error it straight went to paypal login page.
The site is www.osplant.com.au and it's on Joomla 1.5.15 and virtuemart 1.1.4

please help URGENT I lose my customers

thanks

[mauri]

Disable Joomla! core SEF, if enabled.
(Joomla! backend. Site -> Global Configuration -> Search Engine Friendly URLs No)

Clean Joomla cache.
(Joomla! backend. Tools -> Clean Cache ->
Site -> "select items" and Delete
Administrator -> "select items" and Delete)

[alish]

Dear mauri
Thank you very much, it works , yoooohhooooo
You should change your profile name from mauri to joomla master
is it possible to happened again and if yes should I do same trick?

Thanks lot again