[Michal_PB1]

Thx. Great, that makes sense

And if you use this code in the Config/Routes.php file
Add its to 14 line

PHP Code:

$request = new Request(new \Config\App);
if ( $request->uri->getSegment(1) == 'admin' ) {
    return \Config\BackedRoutes;
} else {
    return \Config\FrontRoutes;
} 


and add to line 3 this use namespace 

PHP Code:

use CodeIgniter\HTTP\Request;