Why is the product section giving 404?

Question

1C-Bitrix

Hi all!

IB structure.

Metal structures (diff.) -> Frames (diff. with subsections Arches, Gates, Stairs) -> Arches (diff.) -> Welded arch (comp.)
Reinforced concrete (diff.) -> Slabs (dep. with subsections Road, Ceilings , Hollow) -> Road (times) -> Road slab 6.0 m x 2.0 m (commodity)

, etc.

In the IB settings:
URL of the section page: /#SECTION_CODE_PATH#/
URL of the detailed view page: /#SECTION_CODE_PATH#/#ELEMENT_CODE#/

In the menu: Metal structures / Reinforced concrete / Contacts

Physical folders on the site: Metal structures, Reinforced concrete in which the catalog component is called.

In the component settings:
CNC directory (relative to the site root): /metallokonstrukcii/

Now the URL of the product looks like this: /metallokonstrukcii/metallokonstrukcii/karkasy/arka-svarnaya/, for some reason "metallokonstrukcii" twice and there is no intermediate section "arki"

But it should be like this: /metallokonstrukcii/karkasy/arki/arka-svarnaya/

Help, otherwise I'm already confused a little)

UPD.
IS settings IS


structure


Component settings