Not an apex domain
The domain 146-115-144-192.s4286.c3-0.nwt-cbr1.sbo-nwt.ma.cable.rcncustomer.com is not the root of its zone.
Instead, try zone transfer on sbo-nwt.ma.cable.rcncustomer.com .
Instead, try zone transfer on sbo-nwt.ma.cable.rcncustomer.com .