Native In-App payment success but returns -1003 response

Hi community,

Using ionic native in-app purchase.I have added my email in play console in Licence Testing.
I tested payment with cordova run android, and the first product purchase was successful but responded with -1003, signature error, and for the further it getProducts() returns ‘Error retrieving SKU’ but can make payment with the device.

Any suggestion for avoiding -1003 error and to get a success response after making the payment.

Any suggestion is appreciable.