jboss启动初始化时出错了，，，？

2005-10-17 14:28:04,515 DEBUG [org.jboss.ejb3.mdb.DLQHandler] Initialization failed DLQHandler
javax.jms.JMSException: Error creating the dlq connection: XAConnectionFactory
 at org.jboss.ejb3.mdb.DLQHandler.createService(DLQHandler.java:141)
 at org.jboss.system.ServiceMBeanSupport.jbossInternalCreate(ServiceMBeanSupport.java:233)
 at org.jboss.system.ServiceMBeanSupport.create(ServiceMBeanSupport.java:160)
 at org.jboss.ejb3.mdb.ConsumerContainer.setupDLQ(ConsumerContainer.java:786)
 at org.jboss.ejb3.mdb.ConsumerContainer.innerCreate(ConsumerContainer.java:247)
 at org.jboss.ejb3.mdb.ConsumerContainer.start(ConsumerContainer.java:149)
 at org.jboss.ejb3.mdb.ConsumerContainer$ExceptionListenerImpl.onException(ConsumerContainer.java:1108)
 at org.jboss.ejb3.mdb.ConsumerContainer$1.run(ConsumerContainer.java:162)

不知是怎么回事，上个星期还好好的，怎么今天一用就出问题了，真奇怪？请帮忙看看了？