diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 65ca4ad..02e0730 100755
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -340,7 +340,7 @@ final class BackendController extends Controller
      */
     public function viewItemManagementItem(RequestAbstract $request, ResponseAbstract $response, $data = null) : View
     {
-        $head = $response->get('Content')->head;
+        $head = $response->data['Content']->head;
         $head->addAsset(AssetType::CSS, 'Resources/chartjs/Chartjs/chart.css');
         $head->addAsset(AssetType::JSLATE, 'Resources/chartjs/Chartjs/chart.js');
         $head->addAsset(AssetType::JSLATE, 'Modules/ItemManagement/Controller.js', ['type' => 'module']);
@@ -563,7 +563,7 @@ final class BackendController extends Controller
      */
     public function viewItemSalesAnalysis(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : RenderableInterface
     {
-        $head = $response->get('Content')->head;
+        $head = $response->data['Content']->head;
         $head->addAsset(AssetType::CSS, 'Resources/chartjs/Chartjs/chart.css');
         $head->addAsset(AssetType::JSLATE, 'Resources/chartjs/Chartjs/chart.js');
         $head->addAsset(AssetType::JSLATE, 'Modules/ClientManagement/Controller.js', ['type' => 'module']);
@@ -735,7 +735,7 @@ final class BackendController extends Controller
      */
     public function viewItemPurchaseAnalysis(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : RenderableInterface
     {
-        $head = $response->get('Content')->head;
+        $head = $response->data['Content']->head;
         $head->addAsset(AssetType::CSS, 'Resources/chartjs/Chartjs/chart.css');
         $head->addAsset(AssetType::JSLATE, 'Resources/chartjs/Chartjs/chart.js');
         $head->addAsset(AssetType::JSLATE, 'Modules/ClientManagement/Controller.js', ['type' => 'module']);