0xe000e214 - An error occurred while processing batch of files to be given to malware scan engine for performing malware scan. See the job log for details.

If any errors are encountered while processing the specific path in the backup set, the error code should be displayed in the scan output in the job log.
Please refer to the URL for the error code number rSystem Error Codes (0-499) (WinError.h) - Win32 apps | Microsoft Learn.
If generic system errors are found during a scan, restore the data to an isolated environment and perform the scan operation.