Hi
I have sucessfully tested the (latest) Klarna Checkout module with the test API keys with no problems at all. But when I take the Klarna module Live, with the proper live API keys, the customer gets a HTTP Error 500 page as Prestashop tries to load a confirmation page. When I enable debug mode, I get this:
The order and payment however gets through to the shop and to the Klarna Merchant.
Prestashop version is 1.7.7.3, slightly modified Classic Theme and no strange modules as far as I can tell (html box, Ei Captcha, css editing). The only odd thing I've done is to change the prestashop default order id to numeric instead of the standard gibberish....
I am not qualified to decipher these messages, hope someone is.
Thank you!
PS: If I make a purchase in the Chrome Incognito mode, the confirmation works. And if a paste the URL of the error-page in another browser (Edge), then it is visible...
PPS: After a hint from the Klarna staff, it turned out to be as simple as a browser cache/cookie issue. I removed the cookies from my particular website, and then it works again. So: SOLVED :-) - true rookie mistake.
If a moderator want to delete this entire post, pls go ahead - or keep it for reference to others that might experience this..
/tomas