checkout-session not created-android paypal sdk

Question

09-08 13:37:45.336 12937-15114/com.example.rajitha.paypal E/paypal.sdk: request failure with http statusCode:422,exception:
09-08 13:37:45.336 12937-15114/com.example.rajitha.paypal E/paypal.sdk: request failed with server response:{"name":"PAYMENT_CREATION_ERROR","debug_id":"f72dd01368fd2","message":"checkout-session not created","information_link":"https://developer.paypal.com/docs/api/#PAYMENT_CREATION_ERROR"}
09-08 13:37:45.336 12937-12937/com.example.rajitha.paypal E/paypal.sdk: PAYMENT_CREATION_ERROR

  

我创建了两个沙盒个人和企业帐户进行测试。使用个人帐户成功记录了应用程序。但无法继续进行交易。我已在屏幕上附上错误消息。