I have seen these errors showing up on logstash: https://logstash.wikimedia.org/goto/e0d362107ae2bf37b7523310ad08e70d
```
Error 1146 from GrowthExperiments\NewcomerTasks\AddLink\LinkRecommendationStore::getByRevId, Table 'testwiki.growthexperiments_link_recommendations' doesn't exist (10.64.32.82) SELECT gelr_page,gelr_data FROM `growthexperiments_link_recommendations` WHERE gelr_revision = xxx LIMIT 1 10.64.32.82
```
Stacktrace:
```
from /srv/mediawiki/php-1.36.0-wmf.33/includes/libs/rdbms/database/Database.php(1703)
#0 /srv/mediawiki/php-1.36.0-wmf.33/includes/libs/rdbms/database/Database.php(1687): Wikimedia\Rdbms\Database->getQueryException(string, integer, string, string)
#1 /srv/mediawiki/php-1.36.0-wmf.33/includes/libs/rdbms/database/Database.php(1662): Wikimedia\Rdbms\Database->getQueryExceptionAndLog(string, integer, string, string)
#2 /srv/mediawiki/php-1.36.0-wmf.33/includes/libs/rdbms/database/Database.php(1231): Wikimedia\Rdbms\Database->reportQueryError(string, integer, string, string, boolean)
#3 /srv/mediawiki/php-1.36.0-wmf.33/includes/libs/rdbms/database/Database.php(1913): Wikimedia\Rdbms\Database->query(string, string, integer)
#4 /srv/mediawiki/php-1.36.0-wmf.33/includes/libs/rdbms/database/Database.php(2013): Wikimedia\Rdbms\Database->select(string, array, array, string, array, array)
#5 /srv/mediawiki/php-1.36.0-wmf.33/extensions/GrowthExperiments/includes/NewcomerTasks/AddLink/LinkRecommendationStore.php(65): Wikimedia\Rdbms\Database->selectRow(string, array, array, string, array)
#6 /srv/mediawiki/php-1.36.0-wmf.33/extensions/GrowthExperiments/includes/HomepageHooks.php(912): GrowthExperiments\NewcomerTasks\AddLink\LinkRecommendationStore->getByRevId(integer)
#7 /srv/mediawiki/php-1.36.0-wmf.33/includes/HookContainer/HookContainer.php(163): GrowthExperiments\HomepageHooks->onSearchDataForIndex(array, JavaScriptContentHandler, WikiPage, ParserOutput, CirrusSearch\CirrusSearch)
#8 /srv/mediawiki/php-1.36.0-wmf.33/includes/HookContainer/HookRunner.php(3320): MediaWiki\HookContainer\HookContainer->run(string, array)
#9 /srv/mediawiki/php-1.36.0-wmf.33/includes/content/ContentHandler.php(1405): MediaWiki\HookContainer\HookRunner->onSearchDataForIndex(array, JavaScriptContentHandler, WikiPage, ParserOutput, CirrusSearch\CirrusSearch)
#10 /srv/mediawiki/php-1.36.0-wmf.33/includes/content/TextContentHandler.php(157): ContentHandler->getDataForSearchIndex(WikiPage, ParserOutput, CirrusSearch\CirrusSearch)
#11 /srv/mediawiki/php-1.36.0-wmf.33/extensions/CirrusSearch/includes/BuildDocument/ParserOutputPageProperties.php(88): TextContentHandler->getDataForSearchIndex(WikiPage, ParserOutput, CirrusSearch\CirrusSearch)
#12 /srv/mediawiki/php-1.36.0-wmf.33/extensions/CirrusSearch/includes/BuildDocument/ParserOutputPageProperties.php(68): CirrusSearch\BuildDocument\ParserOutputPageProperties->finalizeReal(Elastica\Document, WikiPage, ParserCache, CirrusSearch\CirrusSearch)
#13 /srv/mediawiki/php-1.36.0-wmf.33/extensions/CirrusSearch/includes/BuildDocument/BuildDocument.php(165): CirrusSearch\BuildDocument\ParserOutputPageProperties->finalize(Elastica\Document, Title)
#14 /srv/mediawiki/php-1.36.0-wmf.33/extensions/CirrusSearch/includes/DataSender.php(299): CirrusSearch\BuildDocument\BuildDocument->finalize(Elastica\Document)
#15 /srv/mediawiki/php-1.36.0-wmf.33/extensions/CirrusSearch/includes/Job/ElasticaWrite.php(136): CirrusSearch\DataSender->sendData(string, array)
#16 /srv/mediawiki/php-1.36.0-wmf.33/extensions/CirrusSearch/includes/Job/JobTraits.php(136): CirrusSearch\Job\ElasticaWrite->doJob()
#17 /srv/mediawiki/php-1.36.0-wmf.33/extensions/EventBus/includes/JobExecutor.php(79): CirrusSearch\Job\CirrusGenericJob->run()
#18 /srv/mediawiki/rpc/RunSingleJob.php(76): MediaWiki\Extension\EventBus\JobExecutor->execute(array)
#19 {main}
```