Http error 500 when trying to order

[estoasdk]

Hi guys,

 

I have an issue with my shop system on my PS 1.7.1.2 installation.

 

When i enter my adress, place of delivery etc. and go to payment everything works fine, but when i've done the payment i get the http error 500 (see photo) and it doesn't return to the order confirmation page.

 

What can cause this issue, the payments are accepted every time, but it dont return to the order confirmation page??

 

Hope you can help me out!

 

 

If i go to debug mode i get this:

 

Edited September 27, 2017 by estoasdk (see edit history)