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 host-151.srv-69-160-85.legion-1.nethosting.com is not the root of its zone.
Instead, try zone transfer on srv-69-160-85.legion-1.nethosting.com .
Instead, try zone transfer on srv-69-160-85.legion-1.nethosting.com .