Issue #3265348: function on null

src/Plugin/Block/DropdownLanguage.php

@@ -194,7 +194,9 @@ class DropdownLanguage extends BlockBase implements ContainerFactoryPluginInterf
             break;
 
           case '2':
-            $name = $link['language']->getName();
+            if ($link['language'] != Null) { 
+            	$name = $link['language']->getName();
+            }
             $links[$lid]['title'] = isset($native_names[$lid]) ? $native_names[$lid][1] : $name;
             if (isset($native_names[$lid]) && (isset($native_names[$lid]) && $native_names[$lid][1] != $name)) {
               $links[$lid]['attributes']['title'] = $name;