ADB restore isn't working

I have a new problem with the adb restore command. I created an adb backup -apk -shared -all and it looked like it worked and I think it did because the size is 6 GB. Well I made this from Android L Preview because I wanted to downgrade because of the bugs and when I try to restore it on Android KitKat 4.4.4 it is not working, the adb shell logcat -s BackupManagerService returned this when I tried to make a full restore:

I/BackupManagerService(  758): Beginning full restore...
D/BackupManagerService(  758): Starting restore confirmation UI, token=1224340204
D/BackupManagerService(  758): Waiting for full restore completion...
D/BackupManagerService(  758): acknowledgeFullBackupOrRestore : token=1224340204 allow=true
D/BackupManagerService(  758): Sending conf message with verb 10
I/BackupManagerService(  758): --- Performing full-dataset restore ---
I/BackupManagerService(  758): Initiating bind of OBB service on com.android.server.BackupManagerService$FullBackupObbConnection@437913f8
I/BackupManagerService(  758): OBB service connection com.android.internal.backup.IObbBackupService$Stub$Proxy@43ad7c48 connected on com.android.server.BackupManagerService$FullBackupObbConnection@437913f8
W/BackupManagerService(  758): Wrong header version: 3
W/BackupManagerService(  758): Invalid restore data; aborting.
I/BackupManagerService(  758): Full restore processing complete.
D/BackupManagerService(  758): Full restore pass complete.

Is there a fix for this? Or another way to restore this information? The backup is encrypted but there is not an error of a wrong password and I am pretty sure it's the correct password.