getting missing: attach failed Error

Hi all;

I am getting an Error message vpb(1,3): cannot answer call when i
execute bayonne -T  myscript. below is the output of the trace.
Please help, what is wrong that i am doing.


test: 0 steps compiled
test::test1: 4 steps compiled
test::test2: 3 steps compiled
test::test3: 8 steps compiled
test::test4: 5 steps compiled
load: unknown keyword; test::test5(2)
test::test5: 3 steps compiled
test::today: 6 steps compiled
test::lastyear: 6 steps compiled
cdr-info: unknown keyword; test::info(3)
test::info: 4 steps compiled
test::map: 4 steps compiled
test::mapout: 2 steps compiled
test::menu: 3 steps compiled
test::menuout: 30 steps compiled
test::block: 6 steps compiled
down: 5 steps compiled
down::service: 10 steps compiled
down::weather: 6 steps compiled
down::nobody: 10 steps compiled
down::busy: 10 steps compiled
down::unavailable: 10 steps compiled
down::ignore: 1 steps compiled
test1: 2 steps compiled
test1::transaction: 13 steps compiled
test1::expMonth: 8 steps compiled
tams1: 6 steps compiled
playrec: 12 steps compiled
playrec::play: 10 steps compiled
playrec::record: 9 steps compiled
cdr: unknown keyword; tams(16)
import: unknown keyword; tams(19)
export: unknown keyword; tams(23)
export: unknown keyword; tams(28)
tams: 8 steps compiled
vmhost: 11 steps compiled
vmhost::memo: 4 steps compiled
vmhost::send: 10 steps compiled
vmhost::login: 16 steps compiled
vmhost::fail: 5 steps compiled
vmhost::bye: 2 steps compiled
vmhost::exit: 2 steps compiled
vmhost::caller: 21 steps compiled
cidlog: 3 steps compiled
dial: 2 steps compiled
dial::transaction: 3 steps compiled
test2: 4 steps compiled
testperl: 10 steps compiled
loading default trunk group
loading outgoing trunk group
loading did trunk group
vpb(1,0): idle
vpb(1,1): idle
vpb(1,2): idle
vpb(1,3): idle
vpb: initalized 4 ports successfully...
driver started 4 port(s)
normal startup; Bayonne Runtime Configuration
fifo: path=/var/run/bayonne/bayonne.ctrl

scheduler: using /etc/bayonne.sched
vpb: event thread started...
network: starting
scheduler starting...
vpb(1,3): ring
neivr.scr: missing; attach failed
vpb(1,3): cannot answer call


Please help 

Thanks in advance
Alim