Endeca promote_content.sh script fails with Exception - SEVERE: Caught an exception while invoking method 'run' on object 'PromoteAuthoringToLive'. Releasing locks.

ERROR Message #1: 
/opt/app/endeca/apps/CRS/control]
$ ./promote_content.sh
[08.02.15 11:20:18] INFO: Checking definition from AppConfig.xml against existing EAC provisioning.
[08.02.15 11:20:19] INFO: Updating definition for custom component 'IFCR'.
[08.02.15 11:20:19] INFO: Updating provisioning for host 'ITLHost'.
[08.02.15 11:20:19] INFO: Updating definition for host 'ITLHost'.
[08.02.15 11:20:20] INFO: Definition updated.
[08.02.15 11:20:20] INFO: Promoting IFCR content...
[08.02.15 11:20:20] SEVERE: null
Occurred while executing line 3 of valid BeanShell script:
[[

1|
2|
3|    IFCR.promoteFromAuthoringToLive();
4|
5|
]]

[08.02.15 11:20:20] SEVERE: Caught an exception while invoking method 'run' on object 'PromoteAuthoringToLive'. Releasing locks.
Caused by java.lang.reflect.InvocationTargetException
sun.reflect.NativeMethodAccessorImpl invoke0 - null
Caused by com.endeca.soleng.eac.toolkit.exception.AppControlException
com.endeca.soleng.eac.toolkit.script.Script runBeanShellScript - Error executing valid BeanShell script.
Caused by java.lang.NullPointerException
com.endeca.soleng.eac.toolkit.utility.IFCRUtility extractIfcrErrorMessage - null

Error Message #2:
Running Promote script from Endeca Experience Manager fails

Solution:
Check if workbench admin password got changed. If admin password got changed through Endeca Administrative Console then make sure you update WorkbenchConfig.xml  file with latest password

Ex:  /opt/app/endeca/apps/CRS/config/script/WorkbenchConfig.xml
 <!--
    ########################################################################
    # IFCR - A component that interfaces with the Workbench repository.
  -->
  <custom-component id="IFCR" host-id="ITLHost" class="com.endeca.soleng.eac.toolkit.component.IFCRComponent">
    <properties>
      <property name="repositoryUrl" value="http://localhost:8006/ifcr" />
      <property name="username" value="admin" />
      <property name="password" value="admin123" />
      <property name="numExportBackups" value="3" />
    </properties>
  </custom-component>