Setting up

<?php

namespace App\Models;

use Firepit\Cms\Models\User as FirepitUser;

class User extends FirepitUser
{
}

Add this class to the $middleware array:

Route::middleware([\Firepit\Cms\Http\Middleware\SiteMiddleware::class])->group(function(){
    // Your routes
});

If you’re using multi-language, also add this middleware:

\Firepit\Cms\Http\Middleware\SiteLanguageMiddleware::class