Transaction validate return unauthorized error

I sending request for validate roku store transaction :

https://apipub.roku.com/listen/transaction-service.svc/validate-transaction/<api_key>/<transaction_id>

but getting error

{"errorCode":null,"errorDetails":null,"errorMessage":"UNAUTHORIZED","status":1,"amount":0,"cancelled":false,"channelId":0,"channelName":null,"couponCode":null,"currency":null,"expirationDate":null,"isEntitled":false,"originalPurchaseDate":"\/Date(-62135596800000+0000)\/","partnerReferenceId":null,"productId":null,"productName":null,"purchaseDate":"\/Date(-62135596800000+0000)\/","quantity":0,"rokuCustomerId":null,"tax":0,"total":0,"transactionId":null}

IP added to white list in acconut.

Which authorization credentials I’m need sending with request?

You should post this in the developers forum, not here. Unlikely to get any help posting it here.

To whom it may concern:

For some reason I have lost the Roku Main page on my TV. I cleaned my lap top and got rid of some pop ups and I am not sure if that had to do anything with loosing the Roku main screen on my TV.

Can you help me?

Thanks

Someone fixed it?