Task failed with error 'could not find bucket'

Hi,

All the Tasks in our account failed in between 7:00-7:30 AM IST and with the error 'could not find bucket' for different buckets and its working fine after 7:30. Could you please let us know whats the reason for this and whether it can happen in future.

__Steps to reproduce:__
Intermittent

__Expected behavior:__
All the Tasks in our account failed

__Actual behavior:__
Task Should complete successfully

__Environment info:__ Both Production and Staging

* InfluxDB version: Cloud 2.0

__Logs:__
Task failed with the error: Task encountered unrecoverable error, requires admin action: Error exhausting result iterator; Err: failed to initialize execute state: could not find bucket "_tasks": failed to initialize execute state: could not find bucket "_tasks"

Begin with the supplied task failure log, especially the missing "_tasks" bucket, and compare the reported production and staging behavior around 7:00–7:30 AM IST. Done means determining why the bucket was unavailable, documenting whether the failure can recur, and confirming Tasks complete successfully during an equivalent test.

Written by the indexing model from the issue text.