Multiple update form input with hasMany relationship

Am developing an E-commerce app and I want to update a table with an multiple data from form dynamically. The OrderProduct class is like a cart which will host the products of an order.

  class OrderProduct extends Model
   {
     protected $fillable = ['product_id', 'product_category_id', 'option_id', 'quantity', 'sales_price', 'sub_total'];
 }

This is my Order model:

   class Order extends Model
 {

  protected $fillable = ['user_id', 'order_product_id', 'payment_method', 'amount_paid', 'billing_details', 'status', 'date'];

        public function orderProduct() {
             return $this->hasMany('App\OrderProduct');
          }

        public function products() {
             return $this->hasMany('App\Product', 'product_id');
        }

       public function options() {
            return $this->hasMany('App\Option', 'option_id');
       }
   }

This is the html;

          <select class="form-control" id="option" name="option[]" id="tags">
                @foreach($options as $option)
                    <option value="{{ $option->id }}" @if($product->option->name == $option->name) selected @endif> 
                        {{ $option->name }}
                    </option>
                @endforeach
       </select>

This is my controller;

    $order   = Order::where('id', '=', $order->id)->firstOrFail();

foreach ($request->option as $option) {

           $orderProduct  = $order->orderProduct()->where('option_id', $option->id)->update(['option_id' => $request->option]);
       }

I keep getting this error Trying to get property of non-object