Symantec Scan Engine experienced an unexpected exception while attempting to scan a file. By default, Scan Engine responds by reporting an Internal Server Error to the NetApp vscan connector which prohibits access to the file. Even when Scan Engine has been configured to "Allow access and generate a log entry" in the container handling properties when a processor limit is met (or exceeded). The "Allow access and generate a log entry" is specific for container violations, and does not apply to scan errors.
Please also see the following article for more information on troubleshooting Decomposer and Generic 24 errors: Symantec Scan Engine/Symantec Protection Engine is reporting Decomposer Error 24 and/or Generic Error 24.
To return the in-memory file system settings to the defaults