OBIEE Error ADF_FACES-60097 ADF_FACES-60096

When selecting "Coreapplication" in enterprise manager of OBIEE following error occured,

[2018-02-22T21:17:13.868+02:00] [AdminServer] [NOTIFICATION] [] [oracle.bi.management.adminservices] [tid: DmsThread-2] [userId: <WLS Kernel>] [ecid: 7326609a41c1cc90:101d0126:161bee9fb6b:-8000-000000000000007d,1:16628] 
[APP: biadminservices#11.1.1] BIInstanceStatusMetricMBeanImpl; getServiceStatus: currentPrincipal is null
[2018-02-22T21:17:14.512+02:00] [AdminServer] [NOTIFICATION] [OBI-SYSMAN-1230] [oracle.bi.management.sysmancommon] [tid: DmsThread-2] [userId: <WLS Kernel>] [ecid: 7326609a41c1cc90:101d0126:161bee9fb6b:-8000-00000000000000
7d,1:16628] [APP: biadminservices#11.1.1] Summary of current system component statuses; Up: 6; Down: 0; Up(HA): 0; Down(HA): 0; Error: 0
[2018-02-22T21:17:14.514+02:00] [AdminServer] [NOTIFICATION] [] [oracle.bi.management.adminservices] [tid: DmsThread-3] [userId: <WLS Kernel>] [ecid: 7326609a41c1cc90:101d0126:161bee9fb6b:-8000-000000000000007d,1:16626] [A
PP: biadminservices#11.1.1] BIInstanceStatusMetricMBeanImpl; getServiceStatus: currentPrincipal is null
[2018-02-22T21:17:15.158+02:00] [AdminServer] [NOTIFICATION] [OBI-SYSMAN-1230] [oracle.bi.management.sysmancommon] [tid: DmsThread-3] [userId: <WLS Kernel>] [ecid: 7326609a41c1cc90:101d0126:161bee9fb6b:-8000-00000000000000
7d,1:16626] [APP: biadminservices#11.1.1] Summary of current system component statuses; Up: 6; Down: 0; Up(HA): 0; Down(HA): 0; Error: 0
[2018-02-22T21:17:15.236+02:00] [AdminServer] [WARNING] [] [oracle.mds] [tid: [ACTIVE].ExecuteThread: '6' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: weblogic] [ecid: 7326609a41c1cc90:101d0126:161bee9fb6b:
-8000-0000000000000137,0] [APP: em] A call to flushChanges on the current MDSSession does not specify the correct transaction key
[2018-02-22T21:17:15.241+02:00] [AdminServer] [ERROR] [ADFC-50018] [oracle.adfinternal.controller.application.AdfcExceptionHandler] [tid: [ACTIVE].ExecuteThread: '6' for queue: 'weblogic.kernel.Default (self-tuning)'] 
[userId: weblogic] [ecid: 7326609a41c1cc90:101d0126:161bee9fb6b:-8000-0000000000000137,0] [APP: em] ADFc: No exception handler was found for an application exception.
[[javax.faces.FacesException: java.io.IOException: Stream closed

[2018-02-22T21:17:15.243+02:00] [AdminServer] 
[WARNING] [] [oracle.adfinternal.view.faces.lifecycle.LifecycleImpl] [tid: [ACTIVE].ExecuteThread: '6' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: weblogic] [ecid: 7326609a41c1cc90:101d0126:161bee9fb6b:-8000-0000000000000137,0] [APP: em] ADF_FACES-60098:Faces lifecycle receives unhandled exceptions in phase RENDER_RESPONSE 6[[javax.faces.FacesException: java.io.IOException: Stream closed

Error can be observed from AdminServer-diagnostic logs.

According to metalink if your system ran out of disk space in any time this corrupted some files and caused this issue.In order to solve this issue,

1.Stop all OBIEE services and weblogic server

2.Find 0 byte files under $DOMAIN_HOME/sysman/mds directory

   cd $DOMAIN_HOME/sysman/mds

   find . -name "*" -size 0 

3.delete these files

4.Open weblogic and OBIEE services

Now "Coreapplication" should be accessible again and deleted files will be recreated.