Can someone help me with this error?

[Ka3]

When I go into my website (localhost) I get an error:

You must be registered for see links

Thank you!

 

[Zoxq]

You're missing the file interface.core.php.
You know there is actual words that states the error right?

 

[HoldUp]

Make a new file in Notepad ++ paste this into it:

<?php

namespace Revolution;
if(!defined('IN_INDEX')) { die('Sorry, you cannot access this file.'); }
interface iCore
{
    public function getOnline();
    
    public function getStatus();
    
    public function systemError($who, $txt);
    
    public function handleCall($k);
    
    public function hashed($password);

}
?>

Then save it as interface.core.php in htdocs or wwwroot, // app // interfaces