Level 7
Ooops, sorry solved. my fault::
instead of writing this logic
$item->schedule_date = $request->schedule_date ? Carbon::createFromFormat('m-d-Y', $request->schedule_date)->format('Y-m-d') : null;
mistakenly I have written
$item->schedule_date = $item->schedule_date ? Carbon::createFromFormat('m-d-Y', $request->schedule_date)->format('Y-m-d') : null;