Hi, I have the same problem. I already set the IPN url in mercadpago.
HELPPPP
09-26-2016 @ 13:36:30 – Getting client credentials…
09-26-2016 @ 13:36:31 – Received valid response from MercadoPago
09-26-2016 @ 13:36:33 – Payment link generated with success from MercadoPago
09-26-2016 @ 13:37:14 – Checking IPN request…
09-26-2016 @ 13:37:14 – Getting client credentials…
09-26-2016 @ 13:37:16 – Received valid response from MercadoPago
09-26-2016 @ 13:37:17 – IPN Response: Array
[body] => {“message”:”not_found”}
[response] => Array
(
[code] => 404
[message] => Not Found
)
09-26-2016 @ 13:37:17 - Received invalid IPN response from MercadoPago.
