SYMPTOM:
When trying to build a report using the out-of-the-box "Blank Report" template in Strategy Web 9.3.0, the following error message is seen:

Your request could not be processed. Please try again. If the problem persists, contact the Administrator. The object does not exist in the metadata.
Object with ID 'D8BA71BC47F4E34E087DB892D05B2C7A' and type 28 (Property Set) is not found in metadata. It may have been deleted.