after start application and log in this error occured :Internal Server Error The server encountered

1- i start application the status is 0 but this error occured
/APP/inst/apps/PROD_oraerp/admin/scripts/jtffmctl.sh start
script returned:
****************************************************

You are running jtffmctl.sh version 120.3


.end std out.
/APP/inst/apps/PROD_oraerp/admin/scripts/jtffmctl.sh: line 127: syntax error near unexpected token `&'
/APP/inst/apps/PROD_oraerp/admin/scripts/jtffmctl.sh: line 127: `    /APP/apps/tech_st/10.1.3/appsutil/jdk/jre/bin/java -ms128m -mx256m -classpath .:/APP/apps/apps_st/comn/java/lib/jdbc6.zip:/APP/apps/apps_st/comn/java/lib/orai18n.zip:/APP/apps/tech_st/10.1.3/lib/xmlparserv2.jar:/APP/apps/apps_st/comn/java/classes:/APP/apps/apps_st/comn/java/classes/3rdparty/RFJavaInt.zip::/APP/apps/apps_st/comn/java/lib/appsborg2.zip -Dengine.LogPath=/APP/inst/apps/PROD_oraerp/logs/appl/admin/log -Dengine.TempDir=/APP/inst/apps/PROD_oraerp/temp -Dengine.CommandPromptEnabled=false -Dengine.CommandPort=9302 -Dengine.AOLJ.config=/APP/inst/apps/PROD_oraerp/appl/fnd/12.0.0/secure/PROD.dbc -Dengine.ServerID=5000 -Ddebug=off -Dengine.LogLevel=1 -Dlog.ShowWarnings=false -Dengine.FaxEnabler=oracle.apps.jtf.fm.engine.rightfax.RfFaxEnablerImpl -Dengine.PrintEnabler=oracle.apps.jtf.fm.engine.rightfax.RfPrintEnablerImpl -Dfax.TempDir=/APP/inst/apps/PROD_oraerp/logs/appl/admin/log -Dprint.TempDir=/APP/inst/apps/PROD_oraerp/logs/appl/admin/log -Dengine.ServerInstanceID=5000 -DTurnOffLowPriorityMonitor=no -Dengine.MaxBatchThreads=12 oracle.apps.jtf.fm.FulfillmentServer>> /APP/inst/apps/PROD_oraerp/logs/appl/admin/log/jtffmctl.txt 2>&1 &'