Fatal error: Uncaught Error: Using $this when not in object context in /home/users5/n/nlanda/www/var/cache/prod/ContainerVhEMuWw/getPrestashop_Admin_Sell_Order_CreditSlip_CreditSlipOptionsFormDataProviderService.php:9 Stack trace: #0 {main} thrown in /home/users5/n/nlanda/www/var/cache/prod/ContainerVhEMuWw/getPrestashop_Admin_Sell_Order_CreditSlip_CreditSlipOptionsFormDataProviderService.php on line 9