Blank page when returning from PayPal

When a customer returns from PayPal after making a payment, and they get the message:

***Your payment for £xx.xx GBP has been completed.

You are now being redirected to **********

If you are not redirected within 10 seconds click here.***

After 10 seconds or clicking the link they go back to a link sucha s:

https://www.******.com/index.php?main_page=checkout_process&referer=paypal&tx=blahblahblah

but its just a blank page. When you view the source code its also blank. It did work at one point, but i dont know whats wrong with it now.

Cany anyone help me please ?

thanks for your time.

Have you checked all your PayPal settings in admin? ie. the URL's entered in PayPal for "Instant Payment Notification Preferences" and "Website Payments Preferences Automatic Return URL"?

Also make sure your "PDT Token (Payment Data Transfer)" info is correct and that you're using the correct URL for your country in zencart admin under "Mode for PayPal web services".

Thanks for your reply and your time.

I have checked all the settings you said and all where correct except for the contry url which I have changed. But I still have the same problem.

As I said before, it did work, but now its stopped. Any help, thanks.

I got these by email:

1
IPN FATAL ERROR :: Could not establish fsockopen.
Host Details = www.paypal.com:80 (111) Connection refused

2
***IPN FATAL ERROR :: Could not establish fsockopen.
Host Details = http://www.paypal.com:80 (111) Connection refused

Trying again without specified protocol ...***

3
***IPN FATAL ERROR :: Could not establish fsockopen.
Host Details = www.paypal.com:80 (111) Connection refused

Trying again without SSL ...***

Anthony2oo5:

I got these by email:

1
IPN FATAL ERROR :: Could not establish fsockopen.
Host Details = www.paypal.com:80 (111) Connection refused

You'll need to talk to your hosting company about why your server cannot do external communications on port 80 using fsockopen().

Additionally, you can do a direct PayPal communications test using this tool:
http://www.zen-cart.com/forum/showthread.php?t=65680

Thanks I have already opened a ticket yesterday, still waiting for a reply.

Will run this test now.

Is this the reason then, I need them to open fsockopen and it will work ?

Thanks for all your time.

From the help text in the Admin before you installed the PayPal module:> Requirements:

*PayPal Account
**Port 80 is used for bidirectional communication with the gateway, so must be open on your host's router/firewall
*PHP allow_url_fopen() must be enabled
*Settings configured as described [ref to IPN URL etc]

Hey, both those files, IPN and CURL dont come up succesful. But everything worked at one point. And on the host page, it says the CURL comes with my package.

Gonna get in touch with the host again.

Ok, everything seems to be working now.

Thanks very much for your time.