==== Error ====
* mwversion: `1.38.0-wmf.3`
* reqId: `4a139657-40c6-4417-8478-10b3700c312a`
* [[ https://logstash.wikimedia.org/app/dashboards#/view/AXFV7JE83bOlOASGccsT?_g=(time:(from:'2021-10-11T10:09:51.000Z',to:'2021-10-12T15:27:18.531Z'))&_a=(query:(query_string:(query:'reqId:%224a139657-40c6-4417-8478-10b3700c312a%22'))) | Find reqId in Logstash ]]
* [[ https://logstash.wikimedia.org/app/dashboards#/view/AXFV7JE83bOlOASGccsT?_g=(time:(from:now-30d,to:now))&_a=(query:(query_string:(query:'normalized_message:%22%5B%7BreqId%7D%5D%20%7Bexception_url%7D%20%20%20TypeError:%20Argument%201%20passed%20to%20Wikibase%5CRepo%5CValidators%5CUniquenessViolation::__construct()%20must%20implement%20interface%20Wikibase%5CDataModel%5CEntity%5CEntityId%20or%20be%20null,%20string%20given,%20called%20in%20/srv/mediawiki/php-1.38.0-wmf.3/extensi%22'))) | Find normalized_message in Logstash ]]
```name=normalized_message
[{reqId}] {exception_url} TypeError: Argument 1 passed to Wikibase\Repo\Validators\UniquenessViolation::__construct() must implement interface Wikibase\DataModel\Entity\EntityId or be null, string given, called in /srv/mediawiki/php-1.38.0-wmf.3/extensi
```
```name=exception.trace,lines=10
from /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/Validators/UniquenessViolation.php(29)
#0 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/Validators/SiteLinkUniquenessValidator.php(63): Wikibase\Repo\Validators\UniquenessViolation->__construct(string, string, string, array)
#1 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/Validators/SiteLinkUniquenessValidator.php(43): Wikibase\Repo\Validators\SiteLinkUniquenessValidator->getConflictError(array)
#2 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/Content/EntityContent.php(662): Wikibase\Repo\Validators\SiteLinkUniquenessValidator->validateEntity(Wikibase\DataModel\Entity\Item)
#3 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/Content/EntityContent.php(644): Wikibase\Repo\Content\EntityContent->applyValidators(array)
#4 /srv/mediawiki/php-1.38.0-wmf.3/includes/Storage/PageUpdater.php(1112): Wikibase\Repo\Content\EntityContent->prepareSave(WikiPage, integer, integer, User)
#5 /srv/mediawiki/php-1.38.0-wmf.3/includes/Storage/PageUpdater.php(1369): MediaWiki\Storage\PageUpdater->makeNewRevision(CommentStoreComment, Status)
#6 /srv/mediawiki/php-1.38.0-wmf.3/includes/Storage/PageUpdater.php(870): MediaWiki\Storage\PageUpdater->doCreate(CommentStoreComment)
#7 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/Store/Sql/WikiPageEntityStore.php(403): MediaWiki\Storage\PageUpdater->saveRevision(CommentStoreComment, integer)
#8 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/Store/Sql/WikiPageEntityStore.php(262): Wikibase\Repo\Store\Sql\WikiPageEntityStore->saveEntityContent(Wikibase\Repo\Content\ItemContent, User, string, integer, boolean, array)
#9 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/lib/includes/Store/TypeDispatchingEntityStore.php(90): Wikibase\Repo\Store\Sql\WikiPageEntityStore->saveEntity(Wikibase\DataModel\Entity\Item, string, User, integer, boolean, array)
#10 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/EditEntity/StatsdSaveTimeRecordingEntityStore.php(53): Wikibase\Lib\Store\TypeDispatchingEntityStore->saveEntity(Wikibase\DataModel\Entity\Item, string, User, integer, boolean, array)
#11 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/EditEntity/MediawikiEditEntity.php(740): Wikibase\Repo\EditEntity\StatsdSaveTimeRecordingEntityStore->saveEntity(Wikibase\DataModel\Entity\Item, string, User, integer, boolean, array)
#12 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/EditEntity/StatsdSaveTimeRecordingEditEntity.php(77): Wikibase\Repo\EditEntity\MediawikiEditEntity->attemptSave(Wikibase\DataModel\Entity\Item, string, integer, string, boolean, array)
#13 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/Api/EntitySavingHelper.php(392): Wikibase\Repo\EditEntity\StatsdSaveTimeRecordingEditEntity->attemptSave(Wikibase\DataModel\Entity\Item, string, integer, string, NULL, array)
#14 /srv/mediawiki/php-1.38.0-wmf.3/extensions/Wikibase/repo/includes/Api/ModifyEntity.php(339): Wikibase\Repo\Api\EntitySavingHelper->attemptSaveEntity(Wikibase\DataModel\Entity\Item, string, array, DerivativeContext)
#15 /srv/mediawiki/php-1.38.0-wmf.3/includes/api/ApiMain.php(1877): Wikibase\Repo\Api\ModifyEntity->execute()
#16 /srv/mediawiki/php-1.38.0-wmf.3/includes/api/ApiMain.php(856): ApiMain->executeAction()
#17 /srv/mediawiki/php-1.38.0-wmf.3/includes/api/ApiMain.php(827): ApiMain->executeActionWithErrorHandling()
#18 /srv/mediawiki/php-1.38.0-wmf.3/api.php(90): ApiMain->execute()
#19 /srv/mediawiki/php-1.38.0-wmf.3/api.php(45): wfApiMain()
#20 /srv/mediawiki/w/api.php(3): require(string)
#21 {main}
```
==== Notes ====
These started happening 2021-10-09 07:00