I can't register new users after upgrade to busine

-- url of the page with the problem -- : mywebsite.com/mypage
-- HikaShop version -- : Business
-- Joomla version -- : 31
-- Browser(s) name and version -- : XXXXX x.x.x
-- Error-message(debug-mod must be tuned on) -- : Error_message

Hi,
I have upgraded to Busniness version, and now it's impossible register new users.
When I fill the registration form and I clic the button, it refreshs on the same page.
Please, give me a solution. It is urgent!
Thanks
Leonora.

Hello Leonora,
Can you show me some screenshots of how did you configured the options of the page "Hikashop->System->Configuration->Checkout".

Hi, Mohamed!
Thanks a lot for your answer. But I restored a copy of the past week because I didn't solve the problem!
With this copy I had to do a few things again, but I could not keep waiting...

Best regards
Leonora