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 ip-133-199-0-186.static.silicanetworks.com.199.0.186.in-addr.arpa is not the root of its zone.
Instead, try zone transfer on 199.0.186.in-addr.arpa .
Instead, try zone transfer on 199.0.186.in-addr.arpa .