Fatal error: Uncaught Error: Class "PrestaShop\PrestaShop\Core\Form\FormHandler" not found in /home/aucoeurdgw/dev/src/PrestaShopBundle/Form/Admin/Sell/Order/Invoices/InvoiceByDateFormHandler.php:41 Stack trace: #0 {main} thrown in /home/aucoeurdgw/dev/src/PrestaShopBundle/Form/Admin/Sell/Order/Invoices/InvoiceByDateFormHandler.php on line 41