The scheduled backup was working fine but has been failing for the last few days with the same error:

jvm 1 | 2010-09-13 04:00:06,729 ERROR - Job default.com.pmease.quickbuild.taskschedule.DefaultTaskScheduler$HelperTask threw an unhandled Exception:
jvm 1 | org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.pmease.quickbuild.model.Configuration#908]
jvm 1 | at org.hibernate.impl.SessionFactoryImpl$1.handleEntityNotFound(SessionFactoryImpl.java:377)
jvm 1 | at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:145)
jvm 1 | at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:195)
jvm 1 | at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:103)
jvm 1 | at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878)
jvm 1 | at org.hibernate.impl.SessionImpl.internalLoad(SessionImpl.java:846)
jvm 1 | at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:557)
jvm 1 | at org.hibernate.type.EntityType.resolve(EntityType.java:379)
jvm 1 | at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:116)
jvm 1 | at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:854)
jvm 1 | at org.hibernate.loader.Loader.doQuery(Loader.java:729)
jvm 1 | at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
jvm 1 | at org.hibernate.loader.Loader.doList(Loader.java:2220)
jvm 1 | at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
jvm 1 | at org.hibernate.loader.Loader.list(Loader.java:2099)
jvm 1 | at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378)
jvm 1 | at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
jvm 1 | at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
jvm 1 | at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
jvm 1 | at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
jvm 1 | at com.pmease.quickbuild.entitymanager.impl.DefaultDataManager.exportEntity(DefaultDataManager.java:457)
jvm 1 | at com.pmease.quickbuild.entitymanager.impl.DefaultDataManager.exportData(DefaultDataManager.java:435)
jvm 1 | at com.pmease.quickbuild.entitymanager.impl.DefaultDataManager$$EnhancerByGuice$$11fec743.CGLIB$exportData$7(<generated>)
jvm 1 | at com.pmease.quickbuild.entitymanager.impl.DefaultDataManager$$EnhancerByGuice$$11fec743$$FastClassByGuice$$fe11fbff.invoke(<generated>)
jvm 1 | at com.google.inject.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:187)
jvm 1 | at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
jvm 1 | at com.pmease.quickbuild.persistence.TransactionInterceptor.invoke(TransactionInterceptor.java:49)
jvm 1 | at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
jvm 1 | at com.google.inject.InterceptorStackCallback.intercept(InterceptorStackCallback.java:45)
jvm 1 | at com.pmease.quickbuild.entitymanager.impl.DefaultDataManager$$EnhancerByGuice$$11fec743.exportData(<generated>)
jvm 1 | at com.pmease.quickbuild.AutoBackupScheduler$1.execute(AutoBackupScheduler.java:38)
jvm 1 | at com.pmease.quickbuild.taskschedule.DefaultTaskScheduler$HelperTask.execute(DefaultTaskScheduler.java:89)
jvm 1 | at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
jvm 1 | at java.lang.Thread.run(Unknown Source)
jvm 1 | 2010-09-13 04:00:06,729 ERROR - Job (default.com.pmease.quickbuild.taskschedule.DefaultTaskScheduler$HelperTask threw an exception.
jvm 1 | org.quartz.SchedulerException: Job threw an unhandled exception. [See nested exception: org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.pmease.quickbuild.model.Configuration#908]]
jvm 1 | at org.quartz.core.JobRunShell.run(JobRunShell.java:213)
jvm 1 | at java.lang.Thread.run(Unknown Source)
jvm 1 | Caused by: org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.pmease.quickbuild.model.Configuration#908]
jvm 1 | at org.hibernate.impl.SessionFactoryImpl$1.handleEntityNotFound(SessionFactoryImpl.java:377)
jvm 1 | at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:145)
jvm 1 | at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:195)
jvm 1 | at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:103)
jvm 1 | at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878)
jvm 1 | at org.hibernate.impl.SessionImpl.internalLoad(SessionImpl.java:846)
jvm 1 | at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:557)
jvm 1 | at org.hibernate.type.EntityType.resolve(EntityType.java:379)
jvm 1 | at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:116)
jvm 1 | at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:854)
jvm 1 | at org.hibernate.loader.Loader.doQuery(Loader.java:729)
jvm 1 | at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
jvm 1 | at org.hibernate.loader.Loader.doList(Loader.java:2220)
jvm 1 | at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
jvm 1 | at org.hibernate.loader.Loader.list(Loader.java:2099)
jvm 1 | at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378)
jvm 1 | at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
jvm 1 | at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
jvm 1 | at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
jvm 1 | at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
jvm 1 | at com.pmease.quickbuild.entitymanager.impl.DefaultDataManager.exportEntity(DefaultDataManager.java:457)
jvm 1 | at com.pmease.quickbuild.entitymanager.impl.DefaultDataManager.exportData(DefaultDataManager.java:435)
jvm 1 | at com.pmease.quickbuild.entitymanager.impl.DefaultDataManager$$EnhancerByGuice$$11fec743.CGLIB$exportData$7(<generated>)
jvm 1 | at com.pmease.quickbuild.entitymanager.impl.DefaultDataManager$$EnhancerByGuice$$11fec743$$FastClassByGuice$$fe11fbff.invoke(<generated>)
jvm 1 | at com.google.inject.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:187)
jvm 1 | at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
jvm 1 | at com.pmease.quickbuild.persistence.TransactionInterceptor.invoke(TransactionInterceptor.java:49)
jvm 1 | at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
jvm 1 | at com.google.inject.InterceptorStackCallback.intercept(InterceptorStackCallback.java:45)
jvm 1 | at com.pmease.quickbuild.entitymanager.impl.DefaultDataManager$$EnhancerByGuice$$11fec743.exportData(<generated>)
jvm 1 | at com.pmease.quickbuild.AutoBackupScheduler$1.execute(AutoBackupScheduler.java:38)
jvm 1 | at com.pmease.quickbuild.taskschedule.DefaultTaskScheduler$HelperTask.execute(DefaultTaskScheduler.java:89)
jvm 1 | at org.quartz.core.JobRunShell.run(JobRunShell.java:202)