Почему не работают put и delete на хостинге?

<form action="{{ route('ad.update', $ad->id) }}" method="post" enctype="multipart/form-data" name="update">
                        <div class="form-group">
                            <label for="title">Название:</label>
                            <input type="text" name="title" id="title" class="form-control" value="{{ $ad->title }}">
                        </div>
                        <div class="form-group">
                            <label for="category">Категория:</label>
                            <div class="row">
                                <div class="col-xs-3">
                                    <select name="category" id="" class="form-control">
                                        @foreach($categories as $category)
                                            @if($category->id == $ad->category_id)
                                                <option value="{{ $category->id }}" selected>{{ $category->name }}</option>
                                            @else
                                                <option value="{{ $category->id }}">{{ $category->name }}</option>
                                            @endif
                                        @endforeach
                                    </select>
                                </div>
                            </div>
                        </div>
                        <div class="form-group">
                            <label for="price">Цена:</label>
                            <input type="text" name="price" id="price" class="form-control" value="{{ $ad->price }}">
                        </div>
                        <div class="form-group">
                            <label for="city">Город:</label>
                            <input type="text" name="city" id="city" class="form-control" value="{{ $ad->city }}">
                        </div>
                        <div class="form-group">
                            <label for="description">Описание:</label>
                            <textarea name="description" id="description" cols="30" rows="10" class="form-control">{{ $ad->description }}</textarea>
                        </div>
                        <div class="form-group">
                            <label for="images">Изображения:</label>
                            <div class="row">
                                @foreach($ad->adimages as $image)
                                    <div class="col-md-2">
                                        <div class="thumbnail">
                                            <img src="{{ url('images/items/' . $ad->id . '/' . $image->image) }}" alt="" width="50px" class="media-object">
                                            <div class="text-center">
                                                <a href="#" id="{{ $image->id }}" class="btn btn-xs btn-danger deleteLink">Удалить</a>
                                            </div>
                                        </div>
                                    </div>
                                @endforeach
                            </div>
                            <input type="file" name="images[]" id="images" multiple="multiple">
                        </div>
                        <input type="hidden" name="_method" value="PUT">
                        {{ csrf_field() }}
                        <div class="form-group">
                            <input type="submit" value="Редактировать объявление" class="btn btn-success">
                        </div>
                    </form>

<form action="" method="post" name="deleteForm" id="deleteForm">
                        <input type="hidden" name="ad_id" id="ad_id" value="{{ $ad->id }}">
                        <input type="hidden" name="_method" value="DELETE">
                        {{ csrf_field() }}
                    </form>