Improve the site on Bitrix

In the admin panel of the site, everything works correctly. Outside the admin panel there are two problems 1)the contacts section is not visible 2)in the output locations of some sections the message "Partition not found."
From the main menu, the /#contacts link does not translate to a section. From some other sections, the /#contacts link works correctly.
They said that allegedly the site was hacked and it was necessary to roll back to a copy of the site. It was noticed late, when the copies had already been erased.