Fatal error: Uncaught Error: Class "PHPExcel_CachedObjectStorage_CacheBase" not found in C:\Apache24\htdocs\recall\Classes\PHPExcel\CachedObjectStorage\Wincache.php:28 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\recall\Classes\PHPExcel\CachedObjectStorage\Wincache.php on line 28