PayPal Integration Stopped Working

I’ve had PayPal integration working fine here: http://onemorething.com.au/videos for a few days now, but a few hours ago, it just stopped working, with no modifications on our side. I’ve enabled PayPal logging, and this is the result (I’ve blanked out the PayPal API info, as I don’t want it public – it is correct however, and matches what is on our PayPal account page):

PHP v5.3.2-1ubuntu4.17 :: WordPress® v3.4.1 :: s2Member® v120703 :: s2Member® Pro v120703
Memory 2.85 MB :: Real Memory 3.00 MB :: Peak Memory 2.89 MB :: Real Peak Memory 3.00 MB
onemorething.com.au/purchase-videos/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_1) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.82 Safari/537.1
-------- Input vars: ( Thu Aug 30, 2012 12:39:03 pm UTC ) --------
array (
  'METHOD' => 'SetExpressCheckout',
  'RETURNURL' => 'http://onemorething.com.au/purchase-videos/?s2member_paypal_xco=s2member_pro_paypal_checkout_return',
  'CANCELURL' => 'http://onemorething.com.au/purchase-videos/?s2member_paypal_xco=s2member_pro_paypal_checkout_cancel',
  'PAGESTYLE' => 'paypal',
  'LOCALECODE' => '',
  'NOSHIPPING' => '1',
  'SOLUTIONTYPE' => 'Sole',
  'LANDINGPAGE' => 'Billing',
  'ALLOWNOTE' => '0',
  'PAYMENTREQUEST_0_PAYMENTACTION' => 'Sale',
  'PAYMENTREQUEST_0_DESC' => 'COUPON 100% off. ( Now: $0.01 ) ~ ORIGINALLY: 2012 One More Thing videos - $49.00',
  'PAYMENTREQUEST_0_CUSTOM' => 'onemorething.com.au',
  'PAYMENTREQUEST_0_CURRENCYCODE' => 'AUD',
  'PAYMENTREQUEST_0_ITEMAMT' => '0.01',
  'PAYMENTREQUEST_0_TAXAMT' => '0.00',
  'PAYMENTREQUEST_0_AMT' => '0.01',
  'L_PAYMENTREQUEST_0_QTY0' => '1',
  'L_PAYMENTREQUEST_0_NAME0' => 'COUPON 100% off. ( Now: $0.01 ) ~ ORIGINALLY: 2012 One More Thing videos - $49.00',
  'L_PAYMENTREQUEST_0_NUMBER0' => '2',
  'L_PAYMENTREQUEST_0_AMT0' => '0.01',
  'PAYMENTREQUEST_0_SHIPTONAME' => 'Anthony Agius',
  'PAYMENTREQUEST_0_SHIPTOSTREET' => '',
  'PAYMENTREQUEST_0_SHIPTOCITY' => '',
  'PAYMENTREQUEST_0_SHIPTOSTATE' => '',
  'PAYMENTREQUEST_0_SHIPTOCOUNTRYCODE' => '',
  'PAYMENTREQUEST_0_SHIPTOZIP' => '',
  'EMAIL' => 'anthony.agius@mactalk.com.au',
  'VERSION' => '71.0',
  'USER' => 'blankedoutforsecurityreasons',
  'PWD' => 'blankedoutforsecurityreasons',
  'SIGNATURE' => 'blankedoutforsecurityreasons',
)
-------- Output string/vars: ( Thu Aug 30, 2012 12:39:23 pm UTC ) --------

array (
  '__error' => 'Error. Please contact Support for assistance.',
)

Our server check is fine too: http://onemorething.com.au/s2member-server-check-120703.php

What can I do to get this working again? This is urgent as I am losing sales :(

This issue fixed itself with time (was probably a PayPal problem), but nobody from s2member bothered to reply back – fantastic :(

Hi Anthony,

I apologize for the delay in responding.

This does sound like a temporary glitch on PayPal’s side and I’m glad to hear that it appears to be working now. Let us know if you have any other problems.