I am trying to add comment using AJAX technology but I have an error:
Failed to load resource: http://localhost:8888/blog/public/comment/add the server responded with a status of 500 (Internal Server Error)
Here is my code:
View:

{{ Form::open(array('method'=>'post','class'=> 'col-md-6','url' => '/comment/add', 'id'=>'comment')) }}

                        <input type=hidden name=post_id value={{$id}}>

                        <div class=row>

                            <div class=inner col-xs-12 col-sm-12 col-md-11 form-group>

                                {{Form::label('name', 'Imię')}}

                                {{Form::text('username', null, array('class'=>'form-control', 'id'=>'name', 'name'=>'name'))}}

                            </div>

                            <div class=inner col-xs-12 col-sm-12 col-md-12 form-group>

                                {{Form::label('message', 'Wiadomość')}}

                                {{Form::textarea('message', null, array('class'=>'form-control', 'id'=>'message', 'name'=>'message', 'rows'=>'5'))}}

                            </div>

                        </div>

                        <div class=row>

                            <div class=col-xs-12 col-md-12 submit form-group>

                                {{Form::submit('Wyślij', array('name'=>'submit', 'class'=>'btn btn-orange'))}}

                            </div>

                        </div>



                    {{ Form::close() }}

Controller:

public function addComment()

{

        $this->layout = null;

        //check if its our form

        if(Request::ajax()){

            $name = Input::get( 'name' );

            $content = Input::get( 'message' );



            $comment = new Comment();

            $comment->author =  $name;

            $comment->comment_content = $content;

            $comment->save();



            $postComment = new CommentPost();

            $postComment->post_id = Input::get('post_id');

            $postComment->comment_id = Comment::max('id');

            $postComment->save();



            $response = array(

                'status' => 'success',

                'msg' => 'Setting created successfully',

            );

            return 'yea';

        }else{

            return 'no';

        }

}

AJAX:

    jQuery( document ).ready( function( $ ) {



    $( '#comment' ).on( 'submit', function(e) {

        e.preventDefault();



        var name = $(this).find('input[name=name]').val();



        $.ajax({

            type: POST,

            url: host+'/comment/add',

        }).done(function( msg ) {

            alert( msg );

        });



    });

});

And the last one routes:

Route::post('comment/add', 'CommentController@addComment');

Anyone have an idea where is the problem and why I can't submit my form?