Error The transaction is not successfully submitted. Security header is not vali
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sir,
please help me !! .
https://www.vocalboothtogo.com/payments/ please help me . I had setup the setting of paypal but send me error :“[The transaction is not successfully submitted.
Security header is not valid]”
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Viewing 2 replies - 1 through 2 (of 2 total)
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