Mongodump error -during application backup

When I am taking application backup I am getting following error, can any one suggest why this error is coming and how to resolve it.

ERROR] 2023-06-26 04:55:25.135 [Thread-2208] application.backup.logger.StreamPrinter - [mongodump ERR] 2023-06-26T04:55:25.135+0000 writing DB_FAULT.fault_comment to archive