strip error The card number is not a valid credit card number.

I am using stripe payment with laravel it was working fine in the test mode.

after changing it to live mode any card I use for test strip returns 

The card number is not a valid credit card number.

the card is real and working fine any help

here is the response of stripe

{ "error": { "code": "invalid_number", "doc_url": "//stripe.com/docs/error-codes/invalid-number", "message": "The card number is not a valid credit card number.", "param": "number", "type": "card_error" }}