The administrative control panel is virtual.
The default address is: your_site/admin
It's worth noting that if you don't have access rights to the administrative panel (not logged in with control panel access rights), you'll see a 404 error (page does not exist) when requesting the address.
You can only change the address in the site configuration file (rk-config.php in the root of the site).
To do this, add the following line of code to the file:
define('RK_ADMINPAGE_PATH', 'foldername');
Where "foldername" can be any other word you want. Use English letters.
If we want the address to be theadmin111, we need to specify the following:
define('RK_ADMINPAGE_PATH', 'theadmin111');