Cannot start CRCLoader-EJB

17:16:57,324 INFO [JmxKernelAbstraction] installing MBean: jboss.j2ee:jar=CRCLoader-EJB.jar,name=DataMartLoader,service=EJB3 with dependencies:
17:16:57,406 INFO [EJBContainer] STARTED EJB: edu.harvard.i2b2.crc.loader.ejb.DataMartLoader ejbName: DataMartLoader
17:16:57,422 INFO [EJBContainer] STOPPED EJB: edu.harvard.i2b2.crc.loader.ejb.DataMartLoader ejbName: DataMartLoader
17:16:57,424 WARN [ServiceController] Problem starting service jboss.j2ee:jar=CRCLoader-EJB.jar,name=DataMartLoader,service=EJB3
java.lang.NullPointerException
at org.jboss.ejb.txtimer.DatabasePersistencePolicy.listTimerHandles(DatabasePersistencePolicy.java:165)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)