Run 4d tools!
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Big Business checks your data, using checksums and other indicators, when launching to determine if your data file is in satisfactory condition. At a certain threshold, Big Business will inform you that your data file needs to be repaired.
The following message appears: "An error occurred while data was being flushed to disk. Run 4d tools."
Follow the instructions provided in Chapter 12 Maintenance to run a Recover By Tags.