139 paypal express check out final check out page "blank"

[imen]

In the last couple of days, paypal express checkout is not working properly. Final check out page turns blank.

I notice the paypal express checkout page format has changed. Is there recent change on the paypal end that may have effected my zencart version?

I also restored the data base prior to the last transaction, that didn't fix the problem unfortunately.

What could be the problem? Where should I begin to debug?

Thanks!

[hunteryz]

In the last couple of days, paypal express checkout is not working properly. Final check out page turns blank.

I notice the paypal express checkout page format has changed. Is there recent change on the paypal end that may have effected my zencart version?

I also restored the data base prior to the last transaction, that didn't fix the problem unfortunately.

What could be the problem? Where should I begin to debug?

Thanks!

I have same problems with you,
it works prefect with USPS shipping, but not international ( the quotation cannot show)
So, I changed configuration, Now Customers call office and say when they checkout, it will show blank page.
And the shipping estimator not work.

It also could be the Zone Setting problem, each time I changed Zones, there will be something wrong with shipping,
I do want to know how to fix that.

[twitchtoo]

Imen, you stated the ZenCart checkout page is turning blank what template files or plug ins have you added/changed recently?


Hunteryz, if USPS is getting all of the information it needs to process correctly, and pass that on to PayPal... if you are logging errors you may find one that mentions what field data is missing.

[hunteryz]

Imen, you stated the ZenCart checkout page is turning blank what template files or plug ins have you added/changed recently?


Hunteryz, if USPS is getting all of the information it needs to process correctly, and pass that on to PayPal... if you are logging errors you may find one that mentions what field data is missing.

Thank you for reply,
Sometimes USPS can show international shipping rate( this is what we need in the future),
but can not pass the shipping rate to PayPal,
The domestic shipping rate cannot show at all, sometimes blank,
and when I add definition zones on USPS, the shipping estimator gone!
I try to find log file, but I did not find it.( I am new)

[mc12345678]

Thank you for reply,
Sometimes USPS can show international shipping rate( this is what we need in the future),
but can not pass the shipping rate to PayPal,
The domestic shipping rate cannot show at all, sometimes blank,
and when I add definition zones on USPS, the shipping estimator gone!
I try to find log file, but I did not find it.( I am new)

So, assuming when you said you are new, that you have then installed version 1.5.1 or higher of Zen Cart. Error log files (if permissions to the directory allow writing) are in the stores directory, sub-folder logs. Error logs are typically created in ZC when a blank page is displayed. The host may have also captured one or more errors in their log files (different path setup by web host).

I'm also guessing (assuming) that you have the latest USPS module installed (July 30th J5 I think was the version). There have been some changes in the process that have effected some having the older USPS version(s) installed.

The shipping rate should eventually be a part of the final price paid by the customer. What version of PayPal processing is being used? (Might make a difference)

[hunteryz]

So, assuming when you said you are new, that you have then installed version 1.5.1 or higher of Zen Cart. Error log files (if permissions to the directory allow writing) are in the stores directory, sub-folder logs. Error logs are typically created in ZC when a blank page is displayed. The host may have also captured one or more errors in their log files (different path setup by web host).

I'm also guessing (assuming) that you have the latest USPS module installed (July 30th J5 I think was the version). There have been some changes in the process that have effected some having the older USPS version(s) installed.

The shipping rate should eventually be a part of the final price paid by the customer. What version of PayPal processing is being used? (Might make a difference)

Hi, MC1-8
The USPS version shows like

Line #2 : * USPS Module for Zen Cart v1.3.x thru v1.6

Line #3 : * USPS RateV4 Intl RateV2 - January 28, 2013 Updates to: July 28, 2013 Version J

Line #10 : * @version $Id: usps.php 2013-07-28 ajeh $ Version J 2013-07-28

The PayPal is express checkout, The below is PayPal version what I find

@version $Id: paypalwpp.php 15623 2010-03-06 11:51:43Z drbyte $
@version $Id: paypaldp.php 16075 2010-04-26 19:39:26Z drbyte $
@version $Id: paypal.php 15555 2010-02-22 06:12:26Z drbyte $
$Id: paypal.php 3016 2006-02-12 05:26:46Z ajeh $

The Zen Cart version is 1.3.9h, So I am thinking about update the zen cart version
Or restore this store using 12/11/2013 back up, I download all the files via FTP,
Want to make sure If I replace all the files by old one, that should work?

[mc12345678]

In the last couple of days, paypal express checkout is not working properly. Final check out page turns blank.

I notice the paypal express checkout page format has changed. Is there recent change on the paypal end that may have effected my zencart version?

I also restored the data base prior to the last transaction, that didn't fix the problem unfortunately.

What could be the problem? Where should I begin to debug?

Thanks!

Check your payPal settings regarding returning to the store after purchase and ipn handling. And then compare those settings with information in your Zen Cart setup, to be sure that things line up. Also be sure that any paths from payPal are directed at your current zC setup, not a previous one.