diff --git a/backend/controllers/BlogCategoryController.php b/backend/controllers/BlogCategoryController.php
index 13cf2bf63..02b6bb95e 100644
--- a/backend/controllers/BlogCategoryController.php
+++ b/backend/controllers/BlogCategoryController.php
@@ -91,7 +91,12 @@ public function actionCreate()
 
             if($response->getStatusCode() != 200) {
 
-                Yii::$app->session->addFlash("error", json_encode($response->data['message']));
+                Yii::warning([
+                    'message' => 'Blog category create failed',
+                    'status' => $response->getStatusCode(),
+                    'provider_message' => isset($response->data['message']) ? $response->data['message'] : null,
+                ], __METHOD__);
+                Yii::$app->session->addFlash("error", Yii::t('app', 'Unable to save blog category. Please try again.'));
 
                 return $this->render('create', [
                     "category" => $params
@@ -133,7 +138,13 @@ public function actionUpdate($id)
             $response = Yii::$app->blogManager->updateCategory($id, $params);
 
             if($response->getStatusCode() != 200) {
-                Yii::$app->session->addFlash("error", json_encode($response->data['message']));
+                Yii::warning([
+                    'message' => 'Blog category update failed',
+                    'status' => $response->getStatusCode(),
+                    'category_id' => $id,
+                    'provider_message' => isset($response->data['message']) ? $response->data['message'] : null,
+                ], __METHOD__);
+                Yii::$app->session->addFlash("error", Yii::t('app', 'Unable to save blog category. Please try again.'));
             } else {
                 return $this->redirect(['view', 'id' => $id]);
             }
@@ -156,7 +167,13 @@ public function actionDelete($id)
         $response = Yii::$app->blogManager->deleteCategory($id);
 
         if($response->getStatusCode() != 200) {
-            Yii::$app->session->addFlash("error", json_encode($response->data['message']));
+            Yii::warning([
+                'message' => 'Blog category delete failed',
+                'status' => $response->getStatusCode(),
+                'category_id' => $id,
+                'provider_message' => isset($response->data['message']) ? $response->data['message'] : null,
+            ], __METHOD__);
+            Yii::$app->session->addFlash("error", Yii::t('app', 'Unable to delete blog category. Please try again.'));
 
             return $this->redirect(['view', 'id' => $id]);
         }
@@ -176,11 +193,9 @@ protected function findModel($id)
         $response = Yii::$app->blogManager->viewCategory($id);
 
         if($response->getStatusCode() != 200 || empty($response->data['ID'])) {
-            // Yii::$app->session->addFlash("error", json_encode($response->data['message']));
-
             throw new NotFoundHttpException(Yii::t('app', 'The requested page does not exist.'));
         }
 
         return $response->data;
     }
-}
\ No newline at end of file
+}
diff --git a/tests/check-backend-blog-category-error-flashes.sh b/tests/check-backend-blog-category-error-flashes.sh
new file mode 100644
index 000000000..e8eecf547
--- /dev/null
+++ b/tests/check-backend-blog-category-error-flashes.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+target="backend/controllers/BlogCategoryController.php"
+
+grep -q "Blog category create failed" "$target"
+grep -q "Blog category update failed" "$target"
+grep -q "Blog category delete failed" "$target"
+grep -q "Unable to save blog category. Please try again." "$target"
+grep -q "Unable to delete blog category. Please try again." "$target"
+grep -q "provider_message" "$target"
+
+if grep -Fq "addFlash(\"error\", json_encode(\$response->data['message']))" "$target"; then
+  echo "backend blog category controller still flashes raw provider messages" >&2
+  exit 1
+fi
+
+echo "Backend blog category error flash guard passed."