diff --git a/src/Plugin/Validation/Constraint/NodeTitleConstraintValidator.php b/src/Plugin/Validation/Constraint/NodeTitleConstraintValidator.php
index 6395ad2..c2ec245 100644
--- a/src/Plugin/Validation/Constraint/NodeTitleConstraintValidator.php
+++ b/src/Plugin/Validation/Constraint/NodeTitleConstraintValidator.php
@@ -22,65 +22,67 @@ class NodeTitleConstraintValidator extends ConstraintValidator {
    */
   public function validate($items, Constraint $constraint) {
     $value_title = $items->first()->value;
-    $title = explode(' ', $value_title);
-    $node = \Drupal::routeMatch()->getParameter('node');
-    if (isset($node)) {
-      $node_type = $node->getType();
-    }
-    else {
-      $url = Url::fromRoute('<current>', $route_parameters = array(), $options = array());
-      $node_url_array = explode("node/add/", $url->toString());
-      $node_type = $node_url_array[1];
-    }
-    $node_title_validation_config = \Drupal::config('node_title_validation.node_title_validation_settings')
-      ->get('node_title_validation_config');
-    foreach ($node_title_validation_config as $config_key => $config_value) {
-      if ($config_value && $config_key == 'comma-' . $node_type) {
-        $include_comma[] = ',';
+    if (!empty(trim($value_title))) {
+      $title = explode(' ', $value_title);
+      $node = \Drupal::routeMatch()->getParameter('node');
+      if (isset($node)) {
+        $node_type = $node->getType();
       }
-      if ($config_key == 'exclude-' . $node_type) {
-        if (!empty($config_value)) {
-          $config_values = array_map('trim', explode(',', $config_value));
-          $config_values = array_merge($config_values, $include_comma);
-          $findings = array();
-          foreach ($title as $key => $title_value) {
-            if (in_array(trim($title_value), $config_values)) {
+      else {
+        $url = Url::fromRoute('<current>', $route_parameters = array(), $options = array());
+        $node_url_array = explode("node/add/", $url->toString());
+        $node_type = $node_url_array[1];
+      }
+      $node_title_validation_config = \Drupal::config('node_title_validation.node_title_validation_settings')
+        ->get('node_title_validation_config');
+      foreach ($node_title_validation_config as $config_key => $config_value) {
+        if ($config_value && $config_key == 'comma-' . $node_type) {
+          $include_comma[] = ',';
+        }
+        if ($config_key == 'exclude-' . $node_type) {
+          if (!empty($config_value)) {
+            $config_values = array_map('trim', explode(',', $config_value));
+            $config_values = array_merge($config_values, $include_comma);
+            $findings = array();
+            foreach ($title as $key => $title_value) {
+              if (in_array(trim($title_value), $config_values)) {
                 $findings[] = $title_value;
+              }
+            }
+            $config_values = $include_comma = [];
+            if ($findings) {
+              $this->context->addViolation("This characters/words are not allowed to enter in the title. - " . implode(', ', $findings));
             }
-          }
-          $config_values = $include_comma = [];
-          if($findings){
-            $this->context->addViolation("This characters/words are not allowed to enter in the title. - " . implode(', ', $findings));
           }
         }
-      }
-      if ($config_key == 'min-' . $node_type) {
-        if (strlen($value_title) < $config_value) {
-          $this->context->addViolation("Title should have minimum $config_value characters");
+        if ($config_key == 'min-' . $node_type) {
+          if (strlen($value_title) < $config_value) {
+            $this->context->addViolation("Title should have minimum $config_value characters");
+          }
         }
-      }
-      if ($config_key == 'max-' . $node_type) {
-        if (strlen($value_title) > $config_value) {
-          $this->context->addViolation("Title should not exceed $config_value characters");
+        if ($config_key == 'max-' . $node_type) {
+          if (strlen($value_title) > $config_value) {
+            $this->context->addViolation("Title should not exceed $config_value characters");
+          }
         }
-      }
-      if ($config_key == 'min-wc-' . $node_type) {
-        if (str_word_count($value_title) < $config_value) {
-          $this->context->addViolation("Title should have minimum word count of $config_value");
+        if ($config_key == 'min-wc-' . $node_type) {
+          if (str_word_count($value_title) < $config_value) {
+            $this->context->addViolation("Title should have minimum word count of $config_value");
+          }
         }
-      }
-      if ($config_key == 'max-wc-' . $node_type) {
-        if (str_word_count($value_title) > $config_value) {
-          $this->context->addViolation("Title should not exceed word count of $config_value");
+        if ($config_key == 'max-wc-' . $node_type) {
+          if (str_word_count($value_title) > $config_value) {
+            $this->context->addViolation("Title should not exceed word count of $config_value");
+          }
         }
-      }
-      if ($config_key == 'unique-' . $node_type || $config_key == 'unique') {
-        if ($config_value == 1) {
-          $nodes = \Drupal::entityTypeManager()
-            ->getStorage('node')
-            ->loadByProperties(array('title' => $value_title));
-          if (!empty($nodes)) {
-            $this->context->addViolation("There is already a node exist with title -  $value_title");
+        if ($config_key == 'unique-' . $node_type || $config_key == 'unique') {
+          if ($config_value == 1) {
+            $nodes = \Drupal::entityTypeManager()
+              ->getStorage('node')
+              ->loadByProperties(array('title' => $value_title));
+            if (!empty($nodes)) {
+              $this->context->addViolation("There is already a node exist with title -  $value_title");
+            }
           }
         }
       }