error walltime

Hello,

I'm using the standalone of itasser. Yesterday we got an error looking like this:

FORTRAN STOP
Unable to run job: unknown resource "walltime".
Exiting.
Unable to run job: unknown resource "walltime".
Exiting.
Unable to run job: unknown resource "walltime".
Exiting.
Unable to run job: unknown resource "walltime".
Exiting.
Unable to run job: unknown resource "walltime".
Exiting.
Unable to run job: unknown resource "walltime".
Exiting.
Unable to run job: unknown resource "walltime".
Exiting.
Unable to run job: unknown resource "walltime".
Exiting.

I looked at this forum and saw that this had probably something to do with an expired walltime. I changed my shell-script and added the -walltime option (see script).

#! /bin/bash
/home/ngs/itasser/I-TASSERmod/runI-TASSER.pl -libdir /home/ngs/itasser -seqname SCN5A_WT -datadir /home/ngs/nexus/itasser/scn5a -walltime 500:00:00 -usrname lgenuser -runstyle parallel

I use qsub to run the script with this command

qsub -e /nexus/dorien/output/ -o /nexus/dorien/output/ -N itasser -q NGS_ALLq /nexus/dorien/scripts/itasser.sh

I relaunched the command but now we get this error:

Unable to run job: unknown resource "500:00:00".
Exiting.
Unable to run job: unknown resource "500:00:00".
Exiting.
Unable to run job: unknown resource "500:00:00".
Exiting.
Unable to run job: unknown resource "500:00:00".
Exiting.
Unable to run job: unknown resource "500:00:00".
Exiting.
Unable to run job: unknown resource "500:00:00".
Exiting.
Unable to run job: unknown resource "500:00:00".
Exiting.
Unable to run job: unknown resource "500:00:00".
Exiting.

Could someone tell what is wrong now?