railsで注文機能を作成したが完了画面のviewが表示されない

ECサイトの注文機能を作っていたのですが、注文機能自体は完成し、完了画面に遷移した時にパスはあっていて、ターミナルにエラーも出ていないのになぜかviewだけが表示されません。このようなことは初めてなので対処法がわからなくなってしまいました。

orders_controller
1class Public::OrdersController < ApplicationController
2  before_action :authenticate_customer!
3
4  def index
5  end
6
7  def show
8  end
9
10  def new
11    @order = Order.new
12    @customer = current_customer
13    @addresses = current_customer.addresses
14  end
15
16  def create
17    @order = Order.new(order_params)
18    @order.customer_id = current_customer.id
19    if @order.save!
20      @cart_items = current_customer.cart_items
21      @cart_items.each do |cart_item|
22        order_detail = OrderDetail.new(order_id: @order.id)
23        order_detail.price = cart_item.item.price
24        order_detail.amount = cart_item.amount
25        order_detail.item_id = cart_item.item_id
26        order_detail.save!
27      end
28      @cart_items.destroy_all
29      redirect_to orders_complete_path
30    else
31      render "new"
32    end
33  end
34
35  def confirm
36    @cart_items = current_customer.cart_items
37    @order = Order.new(order_params)
38    @order.customer_id = current_customer.id
39    @order.payment_method = params[:order][:payment_method]
40    @total_payment = current_customer.cart_items.cart_items_total_price(@cart_items)
41    @order.shipping_cost = 800
42
43    if params[:order][:address_option] == "0"
44      @order.postal_code = current_customer.postal_code
45      @order.address = current_customer.address
46      @order.name = current_customer.full_name_a
47      render 'confirm'
48    elsif params[:order][:address_option] == "1"
49      @address = Address.find(params[:order][:address_id])
50      @order.postal_code = @address.postal_code
51      @order.address = @address.address
52      @order.name = @address.name
53      render 'confirm'
54    elsif params[:order][:address_option] == "2"
55      @address = current_customer.addresses.new
56      @address.address = params[:order][:address]
57      @address.name = params[:order][:name]
58      @address.postal_code = params[:order][:postal_code]
59      @address.customer_id = current_customer.id
60      if @address.save
61      @order.postal_code = @address.postal_code
62      @order.name = @address.name
63      @order.address = @address.address
64      else
65       render 'new'
66      end
67    end
68  end
69
70  def complete
71  end
72
73  private
74
75  def order_params
76    params.require(:order).permit(:postal_code,:address, :name, :shipping_cost,
77      :address, :total_payment, :payment_method, :status)
78  end
79
80  def address_params
81    params.require(:address).permit(:customer_id, :name, :postal_code, :address)
82  end
83end

<div class="container">
  <h2 class="border-bottom">注文情報確認</h2>
    <div class="row">
      <div class="col-xs-8">
        <table class="table table-striped table-bordered table-hover table-sm">
          <thead>
            <tr>
              <th>商品名</th>
              <th>単価（税込）</th>
              <th>数量</th>
              <th>小計</th>
            </tr>
          </thead>
          <tbody>
            <% @cart_items.each do |cart_item| %>
              <tr>
                <td>
                  <%= image_tag cart_item.item.get_image, size: '50x50' %>
                  <%= cart_item.item.name %>
                </td>
                <td><%= (cart_item.item.price * 1.1).floor.to_s(:delimited) %></td>
                <td><%= cart_item.amount %></td>
                <td><%= (cart_item.item.price * cart_item.amount * 1.1).floor.to_s(:delimited) %></td>
              </tr>
            <% end %>
          </tbody>
        </table>
      </div>
      <%= form_with model: @order, url: orders_path, local: true do |f| %>
        <div class="col-xs-3">
          <table class="table table-striped table-bordered table-hover table-sm">
            <tbody>
              <tr>
                <td>送料</td>
                <td>
                  <%= @order.shipping_cost.to_s(:delimited) %>
                  <%= f.hidden_field :address, :value => @order.address %>
                </td>
              </tr>
              <tr>
                <td>商品合計</td>
                <td>
                 <%= @total_payment.to_s(:delimited) %>
                </td>
              </tr>
              <tr>
                <td>請求金額</td>
                <td>
                  <%= (@total_payment + 800).to_s(:delimited) %>
                  <%= f.hidden_field :total_payment, :value => (@total_payment + 800) %>
                </td>
              </tr>
            </tbody>
          </table>
        </div>
      </div>
    <div class="form-group">
      <h3>支払方法:</h3>
      <h4><%= @order.payment_method_i18n %></h4>
      <%= f.hidden_field :payment_method, :value => @order.payment_method %>
    </div>

    <div class="form-group">
      <h3>お届け先:</h3>
      〒<%= @order.postal_code.to_s %>
      <%= f.hidden_field :postal_code, :value => @order.postal_code %>
      <%= @order.address %>
      <%= f.hidden_field :address, :value => @order.address %>
      <%= @order.name %>
      <%= f.hidden_field :name, :value => @order.name %>
    </div>
    <div class="text-left">
      <%= link_to "情報入力へ戻る", new_order_path, class: "btn btn-primary" %>
    </div>
    <div class="text-center">
      <%= f.submit "購入を確定する", class: "btn btn-success btn-lg text-center" %>
    </div>
  <% end %>
</div>

routes.rb
1Rails.application.routes.draw do
2  root to: 'public/homes#top'
3
4  get "about"=>"public/homes#about"
5  get 'customers/edit' => "public/customers#edit"
6  patch 'customers' => "public/customers#update"
7
8  devise_for :customers,skip: [:passwords], controllers: {
9    registrations: "public/registrations",
10    sessions: 'public/sessions'
11  }
12  scope module: :public do
13    resources :items, only: [:index, :show]
14
15    get 'customers/my_page' => "customers#show"
16    get 'customers/unsubscribe' => "customers#unsubscribe"
17    patch 'customers/withdraw' => "customers#withdraw"
18
19    resources :cart_items, only: [:index, :update, :destroy, :create]
20    delete 'cart_item/destroy_all' => "cart_items#destroy_all"
21
22    resources :orders, only: [:new, :create, :index, :show]
23    post 'orders/confirm' => "orders#confirm"
24    get 'orders/complete' => "orders#complete"
25  end
26
27  scope module: :customer do
28    resources :addresses, only: [:index, :edit, :create, :update, :destroy]
29  end
30
31  devise_for :admin, skip: [:registrations, :passwords] ,controllers: {
32    sessions: "admin/sessions"
33  }
34
35  namespace :admin do
36    get "/" => "homes#top"
37    resources :items, only: [:index, :new, :create, :show, :edit, :update]
38    resources :genres, only: [:index, :create, :edit, :update]
39    resources :customers, only: [:index, :show, :edit, :update]
40    resources :orders, only: [:index, :show, :update]
41    resources :order_details, only: [:update]
42  end
43end

そして次のが問題の読み込まれていないviewです。

complete.html.erb
1<div class="container">
2  <div class="row">
3    <h1 class="text-center">ご注文ありがとうございました！！</h1>
4    <div class="text-center">
5      <%= link_to "トップページへ戻る", root_path, class: "btn btn-primary" %>
6    </div>
7  </div>
8</div>