i get the following error when i try to add a mediation configuration to a new entity

2010-07-26 13:24:00,156 DEBUG [com.sapienter.jbilling.server.mediation.MediationSessionBean] Processing entity 2
2010-07-26 13:24:00,156 DEBUG [com.sapienter.jbilling.server.pluggableTask.admin.PluggableTaskManager] total classes = 1
2010-07-26 13:24:00,156 DEBUG [com.sapienter.jbilling.server.pluggableTask.admin.PluggableTaskManager] Applying task com.sapienter.jbilling.server.mediation.task.RulesMediationTask
2010-07-26 13:24:00,171 DEBUG [com.sapienter.jbilling.server.mediation.MediationSessionBean] Now using configuration ID: 110 name: csv mediation order value: 1 task: {-com.sapienter.jbilling.server.pluggableTask.admin.PluggableTaskDTO-id=2010 entityId=2 processingOrder=1 type={-com.sapienter.jbilling.server.pluggableTask.admin.PluggableTaskTypeDTO-id=32 className=com.sapienter.jbilling.server.mediation.task.SeparatorFileReader minParameters=2 category={-com.sapienter.jbilling.server.pluggableTask.admin.PluggableTaskTypeCategoryDTO-id=15 interfaceName=com.sapienter.jbilling.server.mediation.task.IMediationReader description=Mediation Reader}}} date: 2010-07-26 13:18:36.0 entity id: 2
2010-07-26 13:24:00,171 DEBUG [com.sapienter.jbilling.server.mediation.task.AbstractReader] Batch size for this reader is 100
2010-07-26 13:24:00,171 DEBUG [com.sapienter.jbilling.server.mediation.task.AbstractFileReader] Started with directory: c:/jbilling/resources/mediation suffix mediation-sample.csv rename false date format yyyyMMdd-HHmmss removeQuote true autoID false
2010-07-26 13:24:00,234 FATAL [com.sapienter.jbilling.server.mediation.MediationSessionBean] Exception in mediation triggerCould not execute JDBC batch update; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
org.springframework.dao.DataIntegrityViolationException: Could not execute JDBC batch update; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:636)
at org.springframework.orm.hibernate3.HibernateTransactionManager.convertHibernateAccessException(HibernateTransactionManager.java:789)
at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:663)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:732)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:701)
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:321)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:116)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy14.createProcessRecord(Unknown Source)
at com.sapienter.jbilling.server.mediation.MediationSessionBean.trigger(MediationSessionBean.java:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy14.trigger(Unknown Source)
at com.sapienter.jbilling.client.process.Trigger.execute(Trigger.java:210)
at org.quartz.core.JobRunShell.run(JobRunShell.java:191)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:516)
Caused by: org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1028)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:366)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:137)
at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:655)
... 22 more
Caused by: java.sql.BatchUpdateException: Cannot add or update a child row: a foreign key constraint fails (`jbilling5`.`mediation_process`, CONSTRAINT `mediation_process_ibfk_1` FOREIGN KEY (`CONFIGURATION_ID`) REFERENCES `pluggable_task` (`ID`))
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1693)
at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1108)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeBatch(NewProxyPreparedStatement.java:1723)
at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268)
... 30 more

thanx...