Instead, if I don't get estimation and proceed directly to the checkout, in /checkout/onepage/ I have no shipping method enabled so I can't proceed to checkout. On what it could depends?
Solved! Go to Solution.
I tried but there isn't any exception.log file and in the system.log file there are only old errors. In addition to that, there are no errors in the Apache log errors. So I really don't know where to search the problem. Does it come to your mind any hint?
I guess that in your position I'll try to check all the logs twice and I'll monitor what happens each time I try to get access to the checkout/cart with that shipment mentod.
I don't know... I'm blind here. :-)
Finally I find the issue: in /app/design/frontend/em0131/em0131_garden/template/checkout/onepage/shipping_method/available.phtml I've got
that returned blank page without any type of error. I removed it and the checkout works now.