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For the experiments with the website, decided on a local server (openserver) to run your production site, that would not break the current working site...
My hoster sent me a separate backup file (archive) from the database and the archive files of the site.
In openserver I created a folder called it site.ru
Imported the DB data from the production site
In WP-config, changed the password and login.
When running openserver go to site.ru open, the page (namely site.ru), but when switching to other menu items, automatically get to a working website.
What need to improve? What would? if locally, then under the local name opened all the links?
When you try to log into the admin panel, just go to the working site...