FIX #19031 TIME 0:05 fix undefined label

src/app/history/controllers/HistoryController.php

@@ -250,7 +250,7 @@ class HistoryController
                 'ip'          => $value['ip'],
                 'message'     => $message,
                 'data'        => $data,
-                'objectLabel' => $value['label']
+                'objectLabel' => $value['label'] ?? null
             ];
         }