Backup purge failed with: Error decoding old base64 metadata
I get periodic email notifications from zextras that the backup purge has failed with a warning that one or more files could be corrupted and to run a coherency check in order to fix it. But after running the coherency check at least 2 times the problem has not been fixed.
If I read further into the email notifications, each one shows the same error at the -- exceptions -- part:
[Purge] Error decoding old base64 metadata in /mnt/zimbra-backup/zextras/backup/accounts/ee57551d-d76d-40df-87e1-d85cf32b1748/items/93/86393: com.zimbra.common.util.BEncoding$BEncodingException: java.lang.NumberFormatException: For input string: "86>93"
Any idea how could I fix this error?
Zextras version: 3.8.1
Zimbra version: 8.8.15_GA_4203
OS version: Ubuntu 20.04