OK, so you have a node "4" assigned to one bulk terminal.
Now what else (if anything) is connected to "4"? What are
other inductors' bulk nodes mapped to? Is your bulk-degenerating
resistor connected to "4" at one end, or is the intended end
instead floating? Is there a disconnect in the extracted net(s)
if you try to follow from bulk-local, to resistor, to bulk-global?
The "library" (I'd assume this means the PDK models
hierarchy) subcircuit looks empty, thus malformed. Perhaps
there is some adjunct model hierarchy intended to replace
this null subcircuit with a useful one?
It does not appear that the assignment of BULK is a problem,
but perhaps the node assignment is not as envisioned.