diff --git a/check-shop-page.php b/check-shop-page.php
new file mode 100644
index 0000000..ff31d1d
--- /dev/null
+++ b/check-shop-page.php
@@ -0,0 +1,98 @@
+<?php
+/**
+ * Diagnostic script to check Shop page configuration
+ * Upload this to your WordPress root and access via browser
+ */
+
+// Load WordPress
+require_once(__DIR__ . '/../../../wp-load.php');
+
+if (!current_user_can('manage_options')) {
+    die('Access denied');
+}
+
+echo '<h1>WooNooW Shop Page Diagnostic</h1>';
+
+// 1. Check WooCommerce Shop Page ID
+$shop_page_id = get_option('woocommerce_shop_page_id');
+echo '<h2>1. WooCommerce Shop Page Setting</h2>';
+echo '<p>Shop Page ID: ' . ($shop_page_id ? $shop_page_id : 'NOT SET') . '</p>';
+
+if ($shop_page_id) {
+    $shop_page = get_post($shop_page_id);
+    if ($shop_page) {
+        echo '<p>Shop Page Title: ' . esc_html($shop_page->post_title) . '</p>';
+        echo '<p>Shop Page Status: ' . esc_html($shop_page->post_status) . '</p>';
+        echo '<p>Shop Page URL: ' . get_permalink($shop_page_id) . '</p>';
+        echo '<h3>Shop Page Content:</h3>';
+        echo '<pre>' . esc_html($shop_page->post_content) . '</pre>';
+        
+        // Check for shortcode
+        if (has_shortcode($shop_page->post_content, 'woonoow_shop')) {
+            echo '<p style="color: green;">✓ Has [woonoow_shop] shortcode</p>';
+        } else {
+            echo '<p style="color: red;">✗ Missing [woonoow_shop] shortcode</p>';
+        }
+    } else {
+        echo '<p style="color: red;">ERROR: Shop page not found!</p>';
+    }
+}
+
+// 2. Find all pages with woonoow shortcodes
+echo '<h2>2. Pages with WooNooW Shortcodes</h2>';
+$pages_with_shortcodes = get_posts([
+    'post_type' => 'page',
+    'post_status' => 'publish',
+    'posts_per_page' => -1,
+    's' => 'woonoow_',
+]);
+
+if (empty($pages_with_shortcodes)) {
+    echo '<p style="color: orange;">No pages found with woonoow_ shortcodes</p>';
+} else {
+    echo '<ul>';
+    foreach ($pages_with_shortcodes as $page) {
+        echo '<li>';
+        echo '<strong>' . esc_html($page->post_title) . '</strong> (ID: ' . $page->ID . ')<br>';
+        echo 'URL: ' . get_permalink($page->ID) . '<br>';
+        echo 'Content: <pre>' . esc_html(substr($page->post_content, 0, 200)) . '</pre>';
+        echo '</li>';
+    }
+    echo '</ul>';
+}
+
+// 3. Check Customer SPA Settings
+echo '<h2>3. Customer SPA Settings</h2>';
+$spa_settings = get_option('woonoow_customer_spa_settings', []);
+echo '<pre>' . print_r($spa_settings, true) . '</pre>';
+
+// 4. Check if pages were created by installer
+echo '<h2>4. WooNooW Page Options</h2>';
+$woonoow_pages = [
+    'shop' => get_option('woonoow_shop_page_id'),
+    'cart' => get_option('woonoow_cart_page_id'),
+    'checkout' => get_option('woonoow_checkout_page_id'),
+    'account' => get_option('woonoow_account_page_id'),
+];
+
+foreach ($woonoow_pages as $key => $page_id) {
+    echo '<p>' . ucfirst($key) . ' Page ID: ' . ($page_id ? $page_id : 'NOT SET');
+    if ($page_id) {
+        $page = get_post($page_id);
+        if ($page) {
+            echo ' - ' . esc_html($page->post_title) . ' (' . $page->post_status . ')';
+        } else {
+            echo ' - <span style="color: red;">PAGE NOT FOUND</span>';
+        }
+    }
+    echo '</p>';
+}
+
+echo '<hr>';
+echo '<h2>Recommended Actions:</h2>';
+echo '<ol>';
+echo '<li>If Shop page doesn\'t have [woonoow_shop] shortcode, add it to the page content</li>';
+echo '<li>If Shop page ID doesn\'t match WooCommerce setting, update WooCommerce > Settings > Products > Shop Page</li>';
+echo '<li>If SPA mode is "disabled", it will only load on pages with shortcodes</li>';
+echo '<li>If SPA mode is "full", it will load on all WooCommerce pages</li>';
+echo '</ol>';