I'm trying to use Paypal Express with Craft Commerce. It sends us Paypal's login page correctly, with the right amounts, but when you click pay it returns us to this URL:
/index.php/actions/commerce/payments/completePayment?commerceTransactionId=43&commerceTransactionHash=cbcad33abe2cf99ea63c8ee49c0ee9af&token=EC-0N649078HJ025430W&PayerID=VAWBVKWL78DHN
but shows a 404 error with no other errors
I've tried using the show errors code mentioned in this post: Handoff to Paypal Express with Craft Commerce
and I've tried it with Stripe which fully works.
There are no log error logs in PHP or Craft's logs, just a 404.
I've tried changing different products, different shipping types, I've uninstalled all other plugins.
It just fails with Paypal, and works with Stripe.
Any ideas?