@maykato @nixiack8 thanks a lot that was the issue, now works correctly.
Best Regards,
Magdi
@maykota thank you, I checked the advanced sitting and I see that the checkout page field is empty (it was always like that, and the site worked normally) is there something I should write in?
@rainfallnixfig i am using storefront theme already, i have aplied the steps mentioned above, deactivaed all plguins except woocommerce, but the technical error still exists.
when click on proceed to check botton, the sites return back to the main shopping page instead of continue for the payment!