ERROR » Class "Project\Controllers\URL" not found

     /home/mgtnweb/elbir.megatonmedya.com/Projects/Frontend/Controllers/Etkinlikler.php
        

22. 
23.         Masterpage::title('Etkinlikler');
24.         View::page('etkinlikler/etkinlikler');
25.         View::data($data);
26. 
27.        Masterpage::meta([
28.                 'name:description'         => $yonetim->$seo_desc,
29.                 'name:keywords'            => $yonetim->$seo_key,
30.                 'name:twitter:card'        => 'summary_large_image',
31. 
                
'name:twitter:site'        => URL::site(URI::active()), 32.                 'name:twitter:title'       =>   $yonetim->$seo_title, 33.                 'name:twitter:description' => $yonetim->$seo_desc, 34.                 'name:twitter:image'       => media($ayar->dark_logo), 35.                 'property:og:title'        =>   $yonetim->$seo_title, 36.                 'property:og:description'  => $yonetim->$seo_desc, 37.                 'property:og:url'          => URL::site(URI::active()), 38.                 'property:og:image'       => media($ayar->dark_logo), 39.                 'property:og:type'         => 'page', 40.             ]); 41.     }