October CMS error in getAttribute() function?

Question

OctoberCMS

I'm writing a reverse form plugin. Created a Contact Form component.
ContactForm.php:

<?php namespace Titamik\Contact\Components;

use Cms\Classes\ComponentBase;
use Input;
Use Mail;

class contactform extends ComponentBase { 
    public function componentDetails() {
        return [
            'name' => 'Contact Form',
            'decription' => 'Контактная форма'
        ];
    }

    public function onSend() {
        $vars = ['name' => Input::get('name'), 'email' => Input::get('email')];

        Mail::send('empty', $vars, function($message) {
            $message->to('[email protected]', 'Admin Person');
            $message->subject('This is a reminder');
        });
    }
}

An error pops up:

call to a member function getAttribute() on null on line 447  .../parsedownextra.php

In general, I did everything as in this video: https://www.youtube.com/watch?time_continue=542&v=...
It only works on video, but I don’t (

Answer 1

I even opened the video and immediately after 5 seconds I saw the difference in the video and in your code.
Compare by letters if you don't see it that way.