diff --git a/src/Plugin/CKEditorPlugin/Snippet.php b/src/Plugin/CKEditorPlugin/Snippet.php
index 63c10df..196a454 100644
--- a/src/Plugin/CKEditorPlugin/Snippet.php
+++ b/src/Plugin/CKEditorPlugin/Snippet.php
@@ -33,7 +33,10 @@ class Snippet extends CKEditorPluginBase implements CKEditorPluginConfigurableIn
     $config['snippets'] = self::getSnippetOptions();
 
     $settings = $editor->getSettings();
-    $allowed_snippets = $settings['plugins']['snippet_manager_snippet']['snippets'];
+    $allowed_snippets = [];
+    if(!empty($settings['plugins']['snippet_manager_snippet']) ) {
+      $allowed_snippets = $settings['plugins']['snippet_manager_snippet']['snippets'];
+    }
     if ($allowed_snippets) {
       foreach ($config['snippets'] as $key => $label) {
         if (!in_array($key, $allowed_snippets)) {