Direct transfert payment dont works

Hello,

First I want to say thank you for this theme. It is awesome and powerfull.

I just have a problem. Direct transfert payment dont works. When trying process payment, it still loading as you can see :

https://image.noelshack.com/fichiers/2018/28/4/1531393480-capture-d-ecran-2018-07-12-13-02-00.png

Can you help me please ? ??

The page I need help with: [log in to see the link]