Internal error

[6b39d5c0e29a0d9f6052baf5] /wiki/Template:Emoji/doc RuntimeException: Could not open '/tmp/mw-GlobalIdGenerator33-UUID-128'.

Backtrace:

from /var/www/html/includes/libs/uuid/GlobalIdGenerator.php(456)
#0 /var/www/html/includes/libs/uuid/GlobalIdGenerator.php(222): Wikimedia\UUID\GlobalIdGenerator->getTimeAndDelay()
#1 /var/www/html/includes/content/Renderer/ContentRenderer.php(90): Wikimedia\UUID\GlobalIdGenerator->newUUIDv1()
#2 /var/www/html/includes/Revision/RenderedRevision.php(260): MediaWiki\Content\Renderer\ContentRenderer->getParserOutput()
#3 /var/www/html/includes/Revision/RenderedRevision.php(233): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached()
#4 /var/www/html/includes/Revision/RevisionRenderer.php(236): MediaWiki\Revision\RenderedRevision->getSlotParserOutput()
#5 /var/www/html/includes/Revision/RevisionRenderer.php(169): MediaWiki\Revision\RevisionRenderer->combineSlotOutput()
#6 /var/www/html/includes/Revision/RenderedRevision.php(196): MediaWiki\Revision\RevisionRenderer->{closure:MediaWiki\Revision\RevisionRenderer::getRenderedRevision():167}()
#7 /var/www/html/includes/poolcounter/PoolWorkArticleView.php(110): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#8 /var/www/html/includes/poolcounter/PoolWorkArticleViewCurrent.php(129): MediaWiki\PoolCounter\PoolWorkArticleView->renderRevision()
#9 /var/www/html/includes/poolcounter/PoolCounterWork.php(173): MediaWiki\PoolCounter\PoolWorkArticleViewCurrent->doWork()
#10 /var/www/html/includes/page/ParserOutputAccess.php(364): MediaWiki\PoolCounter\PoolCounterWork->execute()
#11 /var/www/html/includes/page/Article.php(834): MediaWiki\Page\ParserOutputAccess->getParserOutput()
#12 /var/www/html/includes/page/Article.php(551): MediaWiki\Page\Article->generateContentOutput()
#13 /var/www/html/includes/actions/ViewAction.php(80): MediaWiki\Page\Article->view()
#14 /var/www/html/includes/actions/ActionEntryPoint.php(728): MediaWiki\Actions\ViewAction->show()
#15 /var/www/html/includes/actions/ActionEntryPoint.php(505): MediaWiki\Actions\ActionEntryPoint->performAction()
#16 /var/www/html/includes/actions/ActionEntryPoint.php(143): MediaWiki\Actions\ActionEntryPoint->performRequest()
#17 /var/www/html/includes/MediaWikiEntryPoint.php(202): MediaWiki\Actions\ActionEntryPoint->execute()
#18 /var/www/html/index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#19 {main}