1C Bitrix bug fixes and adds functionality

Developed by 1C Bitrix ( https://ohranakmk.ru/ )
1) Uncaught TypeError: Cannot read properties of null (reading parentElement)
2) Remove pop-up messages (home/o/ohranapv/ohranakmk.ru/public_html/bitrix/templates/aspro-landscape/page_blocks/header_fixed_custom.php)
3) Change the Tech directories page. Security, Service, Physical Security:
1. Add a catalog menu cost calculator
2. Add Kit Selection
4) Error when updating the platform

Full TK in the description.