diff --git a/Block/Category/Listpost.php b/Block/Category/Listpost.php
index 0713335d..6e991038 100755
--- a/Block/Category/Listpost.php
+++ b/Block/Category/Listpost.php
@@ -81,8 +81,8 @@ protected function _prepareLayout()
 
         if ($breadcrumbs = $this->getLayout()->getBlock('breadcrumbs')) {
             $category = $this->getBlogObject();
-            $categoryName = preg_replace('/[^A-Za-z0-9\-]/', ' ', $category->getName());
             if ($category) {
+                $categoryName = preg_replace('/[^A-Za-z0-9\-]/', ' ', $category->getName());
                 $breadcrumbs->addCrumb($category->getUrlKey(), [
                     'label' => __($categoryName),
                     'title' => __($categoryName)
diff --git a/Block/Tag/Listpost.php b/Block/Tag/Listpost.php
index b7ff284f..1d2cbb1e 100755
--- a/Block/Tag/Listpost.php
+++ b/Block/Tag/Listpost.php
@@ -82,8 +82,8 @@ protected function _prepareLayout()
 
         if ($breadcrumbs = $this->getLayout()->getBlock('breadcrumbs')) {
             $tag     = $this->getBlogObject();
-            $tagName = preg_replace('/[^A-Za-z0-9\-]/', ' ', $tag->getName());
             if ($tag) {
+                $tagName = preg_replace('/[^A-Za-z0-9\-]/', ' ', $tag->getName());
                 $breadcrumbs->addCrumb($tag->getUrlKey(), [
                     'label' => __($tagName),
                     'title' => __($tagName)
diff --git a/Block/Topic/Listpost.php b/Block/Topic/Listpost.php
index 3c111e96..26d8a749 100755
--- a/Block/Topic/Listpost.php
+++ b/Block/Topic/Listpost.php
@@ -83,8 +83,8 @@ protected function _prepareLayout()
 
         if ($breadcrumbs = $this->getLayout()->getBlock('breadcrumbs')) {
             $topic     = $this->getBlogObject();
-            $topicName = preg_replace('/[^A-Za-z0-9\-]/', ' ', $topic->getName());
             if ($topic) {
+                $topicName = preg_replace('/[^A-Za-z0-9\-]/', ' ', $topic->getName());
                 $breadcrumbs->addCrumb($topic->getUrlKey(), [
                     'label' => __($topicName),
                     'title' => __($topicName)
diff --git a/Controller/Adminhtml/Post/Save.php b/Controller/Adminhtml/Post/Save.php
index 90322fc4..09cff319 100755
--- a/Controller/Adminhtml/Post/Save.php
+++ b/Controller/Adminhtml/Post/Save.php
@@ -127,11 +127,11 @@ public function execute()
             $this->prepareData($post, $data);
             try {
                 if (empty($action) || $action === 'add') {
-                    $post->save();
                     $this->_eventManager->dispatch(
                         'mageplaza_blog_post_prepare_save',
                         ['post' => $post, 'request' => $this->getRequest()]
                     );
+                    $post->save();
                     $this->messageManager->addSuccessMessage(__('The post has been saved.'));
                 }
                 $this->addHistory($post, $action);
diff --git a/composer.json b/composer.json
index 8149f9be..58d88b42 100755
--- a/composer.json
+++ b/composer.json
@@ -6,7 +6,7 @@
     "mageplaza/facebook-graph-sdk": "^1.0.2"
   },
   "type": "magento2-module",
-  "version": "4.2.8",
+  "version": "4.2.8-p0",
   "license": "proprietary",
   "keywords": [
     "magento 2",