public function pendingCancellations($installationId)
 {
     $installation = Installation::query()->findOrFail($installationId);
     $pendingCancellations = Application::query()->where('installation_id', '=', $installationId)->where('ext_current_status', '=', 'pending_cancellation')->get();
     return View('applications.pending-cancellation', ['applications' => $pendingCancellations, 'installation' => $installation]);
 }