linux sh: 0: can't open,x11 - usr/bin/xterm Xt error: Can't open display: /usr/bin/xterm: DISPLAY is...

I'm trying to submit a job to a school server (HPC) with:

#!/bin/bash

#$ -S /bin/bash

#$ -cwd

#$ -o ./out_$JOB_ID.txt

#$ -e ./err_$JOB_ID.txt

#$ -notify

#$ -pe orte 1

date

pwd

##################################

RESULT_DIR=~/Results

SCRIPT_FILE=sample_job

##################################

. /etc/profile

. /etc/bashrc

module load packages/comsol/4.4

module load packages/matlab/r2012b

comsol server matlab "sample_job, exit" -nodesktop -mlnosplash

/bin/uname -a

mkdir $RESULT_DIR/$name

cp *.csv $RESULT_DIR/$name

The job aborts saying:

Sun Jun 8 14:20:21 EDT 2014

COMSOL 4.4 (Build: 150) started listening on port 2036

Use the console command 'close' to exit the program

/usr/bin/xterm Xt error: Can't open display:

/usr/bin/xterm: DISPLAY is not set

Program_did_not_exit_normally

Exception:

com.comsol.util.exceptions.FlException: Program did not exit normally

Messages:

Program did not exit normally

Stack trace:

at com.comsol.mli.application.a.a(Unknown Source)

at com.comsol.mli.application.MatlabApplication.doStart(Unknown Source)

at com.comsol.util.application.ComsolApplication.doStart(Unknown Source)

at com.comsol.util.application.ComsolApplication.doRun(Unknown Source)

at com.comsol.bridge.Bridge$2.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

ERROR: Could not start COMSOL Application. See log file: /home/.comsol/v44/logs/server2.log

java.lang.IllegalStateException: Shutdown in progress

at java.lang.ApplicationShutdownHooks.add(Unknown Source)

at java.lang.Runtime.addShutdownHook(Unknown Source)

at org.apache.catalina.startup.Catalina.start(Catalina.java:699)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:451)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.comsol.util.application.ServerApplication.a(Unknown Source)

at com.comsol.util.application.ServerApplication.a(Unknown Source)

at com.comsol.util.application.ServerApplication.a(Unknown Source)

at com.comsol.util.application.ServerApplication.main(Unknown Source)

What might be the reason and how should I fix it?