FIX #19031 TIME 0:10 Fix warnings when filtering in the history

src/app/history/controllers/HistoryController.php

@@ -211,7 +211,7 @@ class HistoryController
 
                 foreach ($filteredHistoryIds as $key => $objectId) {
                     if (!empty($key)) {
-                        $history[$key]['label'] = $objects[$objectId];
+                        $history[$key]['label'] = $objects[$objectId] ?? null;
                     }
                 }
             }
@@ -591,7 +591,6 @@ class HistoryController
             }
 
             $zip->close();
-
             $fileContent = file_get_contents($zipFilename);
             unlink($zipFilename);
             return ['fileContent' => $fileContent];