付款单编码规则

付款单编码规则，点击保存时报错，报错信息：
错误信息：Server Component wrap a Throwable. Exception Type is [javax.ejb.EJBException]
Caused exception message is: Unexpected system failure, see server log for details. [Client -- String Serialize]
错误详细堆栈信息：com.kingdee.bos.BOSException: Server Component wrap a Throwable. Exception Type is [javax.ejb.EJBException]
Caused exception message is: Unexpected system failure, see server log for details. [Client -- String Serialize]
at com.kingdee.bos.transaction.EJBTransactionProxy.invoke(EJBTransactionProxy.java:246)
at com.kingdee.bos.transaction.EJBTransactionProxy.invoke(EJBTransactionProxy.java:324)
at com.sun.proxy.$Proxy329.update(Unknown Source)
at com.kingdee.eas.base.codingrule.CodingRuleManager.update(CodingRuleManager.java:115)
at rpc_generate._PROXY_com_1_kingdee_1_eas_1_base_1_codingrule_1_ICodingRuleManager.pi68(Unknown Source)
at rpc_generate._PROXY_com_1_kingdee_1_eas_1_base_1_codingrule_1_ICodingRuleManager.processInvoke(Unknown Source)
at com.kingdee.bos.rpc.impl.ObjectProxy.processInvoke(ObjectProxy.java:177)
at com.kingdee.bos.rpc.impl.RPCService.serviceInvoke(RPCService.java:780)
at com.kingdee.bos.rpc.impl.RPCService.service(RPCService.java:139)
at com.kingdee.bos.rpc.impl.ServiceDispatcher.run(ServiceDispatcher.java:153)
at com.kingdee.bos.rpc.impl.ThreadJob.run(ThreadJob.java:27)
at com.kingdee.bos.rpc.impl.ThreadPool2$Worker.run(ThreadPool2.java:140)
Caused By: javax.ejb.EJBException
javax.ejb.EJBException: Unexpected system failure, see server log for details.
at com.apusic.ejb.container.Container.postInvokeTx(Container.java:2184)
at com.apusic.ejb.container.Component.postInvoke(Component.java:427)
at com.kingdee.bos.transaction.EJBTxFacade.TxInvokerBean_LocalObjectImpl_2.INVOKE_REQUIRED(Unknown Source)
at com.kingdee.bos.transaction.EJBTransactionProxy.invoke(EJBTransactionProxy.java:171)
at com.kingdee.bos.transaction.EJBTransactionProxy.invoke(EJBTransactionProxy.java:324)
at com.sun.proxy.$Proxy329.update(Unknown Source)
at com.kingdee.eas.base.codingrule.CodingRuleManager.update(CodingRuleManager.java:115)
at rpc_generate._PROXY_com_1_kingdee_1_eas_1_base_1_codingrule_1_ICodingRuleManager.pi68(Unknown Source)
at rpc_generate._PROXY_com_1_kingdee_1_eas_1_base_1_codingrule_1_ICodingRuleManager.processInvoke(Unknown Source)
at com.kingdee.bos.rpc.impl.ObjectProxy.processInvoke(ObjectPr