i am not able to find order through id in laravel

I am new to shopping cart. I am able to get all the data from order table on this page but i am not able to find single order by ID: This is my view page where i am sending the $id to the controller of the order. id)}}">Order# The whole code: '''

@foreach($orders as $order) @if($order->status == "CompletedOrders")

                    <div class="panel panel-default">
                        <div class="panel-body">
                            <ul class="list-group" >

                                <li class="list-group-item" style="background-color: #5C94ED">
                                    <a href=""><h1 style="color: #FBEB58">Order# </h1></a>
                                    <span class="badge" style="color: black; font-size: 16px">Name: </span>
                                    <br>
                                    <span class="badge" style="color: black; font-size: 16px">Phone: </span>
                                    <br>
                                    @foreach($order->cart->items as $item)
                                        <span class="badge" style="color: #FBEB58; font-size: 16px"> </span>
                                        <br>
                                        <span class="badge" style="color: #FBEB58; font-size: 16px">Price: $</span>
                                        <br>
                                    @endforeach
                                    <span class="badge" style="color: black; font-size: 16px">Instructions: </span>
                                    <br>
                                    <span class="badge" style="color: black; font-size: 16px">Time: </span>
                                    <br>
                            </ul>
                        </div>
                        <div class="panel-footer">
                            <strong style="color: #222D32; font-size: 18px">Total Price: $</strong>
                        </div>
                    </div>
                    
                    <input type="button" onclick="printDiv('printableArea')" value="print a div" />
                @endif
            @endforeach

''' This is my route

'''

Route::get('showcompleteorder/{id}','OrderController@showCompleteOrder')->name('showcompleteorder');

''' and this is my controller:

public function showCompleteOrder($id){
    $orders = Order::find($id);
    $orders->transform(function ($order, $key) {
        $order->cart = unserialize($order->cart);
        return $order;
    });
    return view('orders.showcompleteorders', ['orders' => $orders]);

}

but when i run this. it gives me a error of transform:

BadMethodCallException

Call to undefined method App\Order::transform() http://localhost:8000/showcompleteorder/2

This is my view where i am trying to get the order by id:

 @foreach($orders as $order)
                    <div class="panel panel-default">
                        <div class="panel-body">
                            <ul class="list-group" >

                                <li class="list-group-item" style="background-color: #5C94ED">
                                    <h1 style="color: #FBEB58">Order# </h1>
                                    <span class="badge" style="color: black; font-size: 16px">Name: </span>
                                    <br>
                                    <span class="badge" style="color: black; font-size: 16px">Phone: </span>
                                    <br>
                                    @foreach($order->cart->items as $item)
                                        <span class="badge" style="color: #FBEB58; font-size: 16px"> </span>
                                        <br>
                                        <span class="badge" style="color: #FBEB58; font-size: 16px">Price: $</span>
                                        <br>
                                    @endforeach
                                    <span class="badge" style="color: black; font-size: 16px">Instructions: </span>
                                    <br>
                                    <span class="badge" style="color: black; font-size: 16px">Time: </span>
                                    <br>
                            </ul>
                        </div>
                        <div class="panel-footer">
                            <strong style="color: #222D32; font-size: 18px">Total Price: $</strong>
                        </div>
                    </div>

            @endforeach

Can Someone please help me

via Chebli Mohamed