lineage 15.1 official fp2 update install error logcat

08-20 21:18:05.144  3940  3940 D UpdaterService: Starting service
08-20 21:18:05.133  3940  3940 W neageos.updater: type=1400 audit(0.0:128456): avc: denied { unlink } for name="log" dev="mmcblk0p15" ino=37 scontext=u:r:priv_app:s0:c512,c768 tcontext=u:object_r:unlabeled:s0 tclass=file permissive=0
08-20 21:18:05.150  3940  3940 W RecoverySystem: !!! REBOOTING TO INSTALL /data/lineageos_updates/lineage-15.1-20180820-nightly-FP2-signed.zip !!!
08-20 21:18:06.164 18085 18085 I /system/bin/uncrypt:   received command: [--update_package=@/cache/recovery/block.map
08-20 21:18:06.164 18085 18085 I /system/bin/uncrypt: --locale=en-US
08-20 21:18:06.164 18085 18085 I /system/bin/uncrypt: ] (59)
08-20 21:18:06.153 18085 18085 W uncrypt : type=1400 audit(0.0:128457): avc: denied { write } for name="mmcblk0p10" dev="tmpfs" ino=8690 scontext=u:r:uncrypt:s0 tcontext=u:object_r:block_device:s0 tclass=blk_file permissive=0
08-20 21:18:06.167 18085 18085 E /system/bin/uncrypt: failed to set bootloader message: failed to open /dev/block/platform/msm_sdcc.1/by-name/pad: Permission denied
08-20 21:18:06.174  7974  9571 E RecoverySystemService: uncrypt failed with status: -1
08-20 21:18:06.174 18085 18085 I /system/bin/uncrypt:   received 0, exiting now
08-20 21:18:06.178  3940  3940 E UpdateInstaller: Could not install update
08-20 21:18:06.178  3940  3940 E UpdateInstaller: java.io.IOException: Setup BCB failed
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at android.os.RecoverySystem.installPackage(RecoverySystem.java:591)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at android.os.RecoverySystem.installPackage(RecoverySystem.java:514)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at org.lineageos.updater.controller.UpdateInstaller.installPackage(UpdateInstaller.java:100)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at org.lineageos.updater.controller.UpdateInstaller.install(UpdateInstaller.java:94)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at org.lineageos.updater.controller.UpdaterService.onStartCommand(UpdaterService.java:196)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3474)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at android.app.ActivityThread.-wrap20(Unknown Source:0)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at android.os.Handler.dispatchMessage(Handler.java:106)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at android.os.Looper.loop(Looper.java:164)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at android.app.ActivityThread.main(ActivityThread.java:6494)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at java.lang.reflect.Method.invoke(Native Method)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:440)
08-20 21:18:06.178  3940  3940 E UpdateInstaller:       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)