Fatal error: Uncaught Error: Class "QuickBooksOnline\API\Core\Http\Serialization\IEntitySerializer" not found in C:\xampp\htdocs\hannoole\PMS\vendor\quickbooks\v3-php-sdk\src\Core\Http\Serialization\XmlObjectSerializer.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\hannoole\PMS\vendor\quickbooks\v3-php-sdk\src\Core\Http\Serialization\XmlObjectSerializer.php on line 15