Hello @Mochammad Nadhiful Alim
When you reported this problem there was an incident occurring on Jira Cloud. You can see the details here:
https://jira-software.status.atlassian.com/incidents/r2dllgb24x2h
The issue was resolved at 01:46 UTC.
When multiple reports of the same type of issue are being posted at about the same time in the Community, or you think you are having a system wide issue, it is always a good idea to check Atlassian's Status Page for active incidents.
https://status.atlassian.com
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