It looks like the page Checkout in backend:
So here she is displayed in the browser (in any way):
A template-based website Ecetro. Perhaps the documentation will help transvelo.github.io/docs/electro/setup/checkout.html
but the thing is, I think, not in the template.
Same problem with My account page. The rest of the pages with the woocommerce shortcodes are displayed correctly. What could be the problem?