Fatal error: Uncaught Error: Class "Psr\Log\AbstractLogger" not found in D:\xampp\htdocs\SSWPOS\vendor\paypal\rest-api-sdk-php\lib\PayPal\Log\PayPalLogger.php:9 Stack trace: #0 {main} thrown in D:\xampp\htdocs\SSWPOS\vendor\paypal\rest-api-sdk-php\lib\PayPal\Log\PayPalLogger.php on line 9