Fatal error: Uncaught Error: Class "PHPExcel_CachedObjectStorage_CacheBase" not found in C:\laragon\www\siesicis\vendor\phpoffice\phpexcel\Classes\PHPExcel\CachedObjectStorage\MemorySerialized.php:36 Stack trace: #0 {main} thrown in C:\laragon\www\siesicis\vendor\phpoffice\phpexcel\Classes\PHPExcel\CachedObjectStorage\MemorySerialized.php on line 36