Good day @lalitsharma309,
Thank you for posting to the PayPal community.
Please refer the below guide link :
https://www.paypal-status.com/history/sandbox
Could you please try now and confirm us whether your still facing the issue.
If issue persists, please create a MTS ticket via - https://www.paypal-support.com/s/?language=en_US with the detail information and error details.
Sincerely,
Chiranjeevi
PayPal/Braintree MTS
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