uparrow/app/Exceptions/Handler.php

<?php

namespace App\Exceptions;

use Exception;
use Illuminate\Validation\ValidationException;
use Illuminate\Auth\Access\AuthorizationException;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;

class Handler extends ExceptionHandler
{
    public function render($request, Exception $e)
    {
        if($e instanceof NotFoundHttpException)
        {
            return response()->view('errors.test');
        }
        
        return parent::render($request, $e);
    }
}