==== Error ====
* service.version: 1.42.0-wmf.20
* trace.id: 95d6292d-782d-44fe-bc4a-61b65dd370f3
* [[ https://logstash.wikimedia.org/app/dashboards#/view/AXFV7JE83bOlOASGccsT?_g=(time:(from:'2024-02-26T19:47:32.873Z',to:'2024-02-27T19:55:38.854Z'))&_a=(query:(query_string:(query:'reqId:%2295d6292d-782d-44fe-bc4a-61b65dd370f3%22'))) | Find trace.id in Logstash ]]
```name=labels.normalized_message,lines=10
[{reqId}] {exception_url} Flow\Exception\InvalidTopicUuidException: An error has occurred.
```
```name=error.stack_trace,lines=10
from /srv/mediawiki/php-1.42.0-wmf.20/extensions/Flow/includes/WorkflowLoaderFactory.php(165)
#0 /srv/mediawiki/php-1.42.0-wmf.20/extensions/Flow/includes/WorkflowLoaderFactory.php(146): Flow\WorkflowLoaderFactory::uuidFromTitlePair(integer, string)
#1 /srv/mediawiki/php-1.42.0-wmf.20/extensions/Flow/includes/Hooks.php(1355): Flow\WorkflowLoaderFactory::uuidFromTitle(MediaWiki\Title\Title)
#2 /srv/mediawiki/php-1.42.0-wmf.20/includes/HookContainer/HookContainer.php(159): Flow\Hooks->onTitleSquidURLs(MediaWiki\Title\Title, array)
#3 /srv/mediawiki/php-1.42.0-wmf.20/includes/HookContainer/HookRunner.php(4001): MediaWiki\HookContainer\HookContainer->run(string, array)
#4 /srv/mediawiki/php-1.42.0-wmf.20/includes/cache/HtmlCacheUpdater.php(251): MediaWiki\HookContainer\HookRunner->onTitleSquidURLs(MediaWiki\Title\Title, array)
#5 /srv/mediawiki/php-1.42.0-wmf.20/includes/actions/ActionEntryPoint.php(726): HtmlCacheUpdater->getUrls(MediaWiki\Title\Title)
#6 /srv/mediawiki/php-1.42.0-wmf.20/includes/actions/ActionEntryPoint.php(510): MediaWiki\Actions\ActionEntryPoint->performAction(Article, MediaWiki\Title\Title)
#7 /srv/mediawiki/php-1.42.0-wmf.20/includes/actions/ActionEntryPoint.php(145): MediaWiki\Actions\ActionEntryPoint->performRequest()
#8 /srv/mediawiki/php-1.42.0-wmf.20/includes/MediaWikiEntryPoint.php(199): MediaWiki\Actions\ActionEntryPoint->execute()
#9 /srv/mediawiki/php-1.42.0-wmf.20/index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#10 /srv/mediawiki/w/index.php(3): require(string)
#11 {main}
```
==== Impact ====
- the rate of the error has increased recently - 557 hits in 7 days, see [[ https://logstash.wikimedia.org/goto/7d23f2c20bc8df448271f588f662e6f8 | logstash link ]]
- UI displays an error page (400 error)
==== Notes ====