==== Error ====
* mwversion: 1.43.0-wmf.8
* reqId: 749ecbc2976f784ef79ef3be
* [[ https://logstash.wikimedia.org/app/dashboards#/view/AXFV7JE83bOlOASGccsT?_g=(time:(from:'2024-06-04T21:21:24.618Z',to:'2024-06-05T23:02:47.672Z'))&_a=(query:(query_string:(query:'reqId:%22749ecbc2976f784ef79ef3be%22'))) | Find reqId in Logstash ]]
```name=normalized_message,lines=10
GrowthExperiments\MentorDashboard\MenteeOverview\UncachedMenteeOverviewDataProvider::getFormattedDataForMentor: Registration timestamp not found for user ID {userId}
```
==== Impact ====
- 86 errors every 3 hours on various wikis, starting `wmf.8`
==== Notes ====
- This log statement was added in T355344 and got deployed with the `wmf.8` train
==== Acceptance Criteria: ====
* [ ] the problem is fixed (TODO: investigate, specify)
* [ ] the filter for this task is removed from the Growth Logstash dasboard: