cart page = 404 not found . This is somewhat embarrassing, isn’t it?

I get this error on my cart page.
The page exists and have this shortcode http://prntscr.com/nj3pjw that seems to be ok. Just, when I try to see domain.com/cart I get that error.

Do you have any idea what could be wrong?

Update: all pages (pages, not products or posts) are getting 404 error.
If I activate another theme, all of them are working just fine.

Hi,

Please, activate default theme and send us a link to the page with the problem. Also, write your admin access to the private content field so we can switch to our theme and check what is wrong.

Regards

[Author]

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