how to create a JIRA Cloud backup

[Vanilla Xiong]

jira cloud
jira-》general configuration ->backup manager
select 'Include additional files (attachments, avatars, and logos) in the backup'
click 'create backup for server'

Export error
Error: PROBLEM_DURING_EXPORT. java.lang.NullPointerException
But don't worry, we'll fix it for you!
You just need to contact Atlassian support and paste in this error message, timestamp and your instance details.
Timestamp: 1486693582294

[Nic Brough -Adaptavist- · Accepted solution]

Please do what it suggests, and raise the support call.

We're end-users here, like yourself, not support.