It seems I still need your help.

I have created this course: https://publicconstruction.ro/courses/curs-manager-de-proiect/
When an user clicks on add2cart (“Adauga in cos”) button, he is redirected to checkout.

Here the user has the option to login or create an account.
If he is already logged in or uses an existing account to log-in, he is able to place an order.

But if he does not have an account and has to create one the order is not processed.
An error message is displayed: “error on order processing. please try again” (https://prnt.sc/iLnSgXP7teFv).

What actually happens is that the user is created in the admin, but the order is not processed. If the user tries to click again on order completion button a message is displayed informing that there is already an user and he should log in. If he logs-in , than he can place the order without any problems.

The best way would be for you to test the process.

Please help me out.

Thanks
Alex