TOPIC: [SOLVED] Thanks email and Paypal issue

Hello,
I have a strange behaviour;

DT Register 3.0.9a
Joomla: 3.4.0

I have a custom payment option with only paypal enabled.
When the user go through the dt register cart, he is redirected to Paypal site.
If he login to paypal account and pay, all goes right and he is registered to the event, and he receives the notification both from paypal and from joomla dt register. Also the admin receives notification email about user registration.

if he abandon the paypal site without logging in, it return back to my site, but anyway he is registered correctly to the event, with status = paid and active, he receives notification from dt register where it says "payment" completed; obviously he don't receive notification by paypal.

All seems to happen till a couple of days. Before it worked good. We didn't changed nothing in the meanwhile.

This morning I also received a message from paypal where it says that "IPN sent to this address are not valid"


Please, can anyone help me?

Kind regards,
Matt

I checked inside the Paypal account and I discovered in the IPN log that the server respond with 500 http status, and it retries a lot of time (13 or 14 times).


Some other times it correctly responds with http status 200, and all goes right.


I already checked the DT register settings, and also IPN settings (url, activated, auto-return off).
I checked also files and directory permission, and I noticed tha I have public_html setted 750, then all the other subdirectories setted as 755...Is it an issue?

Any other idea on the cause?

Regards,
Matt

I checked my error log on the site and discovered this issue

I checked line 312 and got:

so it seems DT_Session::get fails.


Any suggestion?


Regards,
Matt

You are using an old DT Register combined with an old Joomla. It's not going to work right. Joomla has made many session related changes over the last year or so and we've had to make changes for things to still work correctly. My guess is you're actually using a build of Joomla that is before those session changes... but using a DT Register that is after those changes. The combo will not work. Update both and you'll be fine.