Fatal error: Uncaught Error: Class 'QuickBooksOnline\API\Core\HttpClients\RestHandler' not found in /home/uralbox/public_html/vendor/quickbooks/v3-php-sdk/src/Core/HttpClients/SyncRestHandler.php:27 Stack trace: #0 {main} thrown in /home/uralbox/public_html/vendor/quickbooks/v3-php-sdk/src/Core/HttpClients/SyncRestHandler.php on line 27