To resolve the problem, perform the following:
Run the cpstop command on the Security gateway.
Backup the files in the $FWDIR/database directory on the Security gatewayand then delete them.
Do not delete the folders inside this directory.
Run the cpstart command.
Install the Security Policy or Data Base after this.
Note:
Use this solution on the Security gateway only. Do not delete the content of the $FWDIR/database directory on the SmartCenter server.