Thread Starter
dk9
(@dk9)
I will add that we are using PDT only, not IPN for the messages PayPal
Plugin Support
Rynald0s.a11n
(@rynald0s)
Automattic Happiness Engineer
Hi @dk9!
This is a pretty generic error and doesn’t provide much information in regard to the actual issue or where it is coming from.
Have you checked the fatal-error logs in WooCommerce > Status > Logs page, to see if there’s any logged date there that could help trace the issue?
In my experience, this could also be a conflict from another plugin (such as caching or security plugins), and in which case you would need to work through a full conflict test and then try and replicate the issue in that mode. You can read more about how to conflict test here:
https://docs.woocommerce.com/document/how-to-test-for-conflicts/
The only tricky bit here is that it sounds like the issue is intermittent and doesn’t happen all the time, correct?
Cheers!
Thread Starter
dk9
(@dk9)
Hi there, thanks for your response.
I can see the logs but I have no idea how to read them.
Anyway, I think these logs only showing the notification *to* PayPal.
The issue is that PayPal has difficulties communicating back to WooCommerce.
One question, when accessing the address http://www.site.com/wc-api/WC_Gateway_Paypal/ from a browser with a CURL command, what should the page show?
At the moment, when going through a browser I’m getting a WordPress page saying: “PayPal IPN Request Failure”. Inspecting the page shows a 500 ERROR.
When CURLing it, also we get a 500 ERROR.
Does that change anything?
Thread Starter
dk9
(@dk9)
Ok, I have done some testing.
I used the SSH of my server to CURL this address.
I have disabled all the plugins and changed the theme.
The 500 error was gone, but as soon as I have activated the WooCommerce plugin again, the 500 error was back.
I also paused Cloudflare or any other caching layer.
So it’s something with WooCommerce that goes wrong. Any idea what can it be?
Daniel
