Prestashop 1.7.3.3 - Checkout loop

[Crea3D]

Hi all,
I was almost ready to publish my new store, and suddenly I get an error during checkout.

Actually I do not have an error, simply the procedure stops at address choices. I can't proceed with the payment methods.
I remain still at the same point in loop.

I activated debugging, and I get the errors you see in the attachment.

Can you can help me?

I had already done other tests, both in localhost and in a secondary folder before moving the site to the main root. No problem.

Tools.php line 1155

return Tools::getAdminToken($tab.(int)Tab::getIdFromClassName($tab).(int)$context->employee->id);

Thank you

EDIT:
I tried with different accounts.
With some it's all right, with others it stops at that point. It seems something related to address management.

Edited September 1, 2018 by Crea3D (see edit history)