During the configuration steps to create the Session Store in LDAP servers we are not creating a SmMaintenance object, which it is needed for ODBC stores. For LDAP stores, it is expected that during the Policy Server start up process, it connects to the Session Store to check if this object already exists, and in case it does not, it will be created using a SmVersion value which your Policy Server supports.
Then, the message is stored in the logs as an INFO message to reflect this operation, which should not be a problem, unless you are seeing it every time you restart the Policy Server (which could indicate a problem to store the object, for example) or with other errors.