SITE answers that there is no such page, it is the site, not the server
When using sites that, in turn, use mod_rewrite , this is normal behavior, since all requests there, if there is no such folder or file to which you refer, are redirected to the index.php file. Here is the usual .htaccess for WP (4.8):
<IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteRule ^index\.php$ - [L] # если мы не нашли файл, который запрашивается, то правило ниже выполнится RewriteCond %{REQUEST_FILENAME} !-f # если мы не нашли папку, которая запрашивается, то правило ниже выполнится RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] </IfModule>
Try, for example, to request some picture from the themes you have installed, and you will see how it will be given out without any problems. The path should look something like this: http://your-site.com/wp-content/themes/your-theme/assets/images/header.jpg .
tried to configure .htaccess in the root of the host, as well as in the right folder
If you have not changed anything in the root .htaccess, then you do not need to do this, unless your code also requires any special processing rules.
what to do so that I can freely go to the following address: mysitename.dn / calc-setting / index.html
To do this, usually, you just need to make sure that you are accessing exactly the path that your real files lie on.