Checkout page not found

[trundle]

Can anyone help he to determine why the checkout page is not found?
I add the items to the cart, but when I click checkout, the error is "THE PAGE YOU REQUESTED CANNOT BE FOUND!"

I have attached the access log in case that helps. There was nothing in the error log.

[Basara]

Hello. What is your AbanteCart version and do you have Fast checkout extension enabled?

[trundle]

v1.3.3  and yes Fast Checkout is On

[maxter]

Check your error log in AbanteCart. access log will not help.