After update from NW6.5 SP2 to SP5 I receive the following error message

MicroKernel Database Engine
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UCMGR-316: Serial number synchronization error. Files have been stamped
but the user count key file does not exist. If you have made a backup copy
of your user count key file (<plat>UCMGR.SYS), please restore it to the
database engine directory
Module NWMKDE.NLM load status OK