A 5.2.2 or higher client is restoring data backed up from a 5.2.0 client. No version check can be performed before the restore.
WebSphere's version information was not stored as part of the backup for 5.2.0. So, a 5.2.2 client cannot ensure that the version of WAS that is being restored is the same version of WAS that is on the machine. A version of WAS that is restored may be incompatible with the version of WAS on the machine and can cause errors in WAS.
No version check is performed.
Make sure that the version of WAS that is being restored is the same as the version of WAS that is installed on the machine.