Fatal error: Uncaught Error: Class "Stripe\ApiResource" not found in C:\xampp\htdocs\dropifypro\vendor\stripe\stripe-php\lib\Tax\CalculationLineItem.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\dropifypro\vendor\stripe\stripe-php\lib\Tax\CalculationLineItem.php on line 20