Changes since SOA version
IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.
Not an apex domain
The domain 128-201-82-5.gpscom.com.ar is not the root of its zone.
Instead, try zone transfer on gpscom.com.ar .
Instead, try zone transfer on gpscom.com.ar .