Hello Anton, I have installed v11.0.4 two day ago and when I use PayPal for payment I always receive message "Transaction verification failed". Money are always transferred but script do not recognize the payment and downloadable product is not available. I test it in "live mode" using my two PayPal account. The PayPal UNA setup is following Start Guide instructions.

Do you have any advice?

Thank you and kind regards,

Martin Horák