Cart/payment/checkout problems

[sickenlysweete]

my site:
http://www.dreamslayervisions.com/visionsonline
after adding the product to the cart
the probelms
1.the select payment goes to a blank white screen
2. the checkout button goes to a blank white screen
3. the show cart goes to a blank white screen

how do i fix this? whats causing it?
do i need some other cart plugin/addon??

i want to use paypal and have done the configure already from here
http://forum.virtuemart.net/index.php?topic=101478.0

[Maxim Pishnyak]

ANY blank screen could be cured by turning ON displaying errors in Joomla configuration.

[sickenlysweete]

looked didnt find anything under joomla config named that..where is it? and if you mean the debugger, doesn't help
the blank page has a tiny box in the top left corner.

[Maxim Pishnyak]

Can't see tiny box - working link?

Attentively check Joomla Options - search for word "error".

[alatak]

Hello
Blank pages are often due to fatal errors.
Go in your joomla configuration, click on server, and select Maximum in the select list Error Reporting
Then you will probably see the fatal error