Got response code 403

[1Alexei1]

I`m used Paypal sandbox for create subscriber, when subscribing, it gives this error

"Got Http response code 403 when accessing https://api.sandbox.paypal.com/v1/payments/billing-plans/."

{"name":"REQUIRED_SCOPE_MISSING","debug_id":"f06a8c8ea474e","message":"Access token does not have required scope","information_link":"https://developer.paypal.com/webapps/developer/docs/api/#REQUIRED_SCOPE_MISSING"}