Customers can't "confirm"?

[SparkyRih]

I'm running PrestaShop 1.6.1.2 with the latest update of the PayPal module... But I get a lot of complaints from customers that they can't "confirm" their payment...

 

One of them send me a screenshot, and somehow he ends up on the following page:

https://www.domaon.com/module/paypal/confirm

The page asks you to verify your address and shows the total amount of the cart. Underneath this information it asks to press the "confirm" button, but there is none... So it's a dead end...

 

When I login as a customer in my store, place an order, and go through all the steps, I end up at the payment selection page, when I click PayPal, it takes me straight to the payment website of PayPal... Whatever I try, I can't duplicate the issue people have informed me about...

 

Maybe some relevant data:

-I sell products in all European Union countries.

-I have a regular verified merchant PayPal account.

-The module is up to date

-A lot of other customers do pay via PayPal successfully

 

I'm afraid this is costing me customers, because several have reported this issue, but others might just give up placing the order due to the bug...

 

Does anybody have any idea what this problem could be, and how to solve it?