Erreur interne

[fbd8833e260c7e745dbcb2ee] /w/index.php?oldid=198445&title=Thread%3A%287%29 TypeError: Sanitizer::removeSomeTags(): Argument #1 ($text) must be of type string, null given, called in /var/www/wikimini.org/upgrade_wikivalley/1.39/includes/OutputPage.php on line 1091

Backtrace:

from /var/www/wikimini.org/upgrade_wikivalley/1.39/includes/parser/Sanitizer.php(392)
#0 /var/www/wikimini.org/upgrade_wikivalley/1.39/includes/OutputPage.php(1091): Sanitizer::removeSomeTags()
#1 /var/www/wikimini.org/upgrade_wikivalley/1.39/extensions/LiquidThreads/includes/Pages/ThreadPermalinkView.php(224): OutputPage->setPageTitle()
#2 /var/www/wikimini.org/upgrade_wikivalley/1.39/extensions/LiquidThreads/includes/LqtDispatch.php(105): ThreadPermalinkView->show()
#3 /var/www/wikimini.org/upgrade_wikivalley/1.39/extensions/LiquidThreads/includes/LqtDispatch.php(226): LqtDispatch::threadPermalinkMain()
#4 /var/www/wikimini.org/upgrade_wikivalley/1.39/includes/HookContainer/HookContainer.php(338): LqtDispatch::tryPage()
#5 /var/www/wikimini.org/upgrade_wikivalley/1.39/includes/HookContainer/HookContainer.php(137): MediaWiki\HookContainer\HookContainer->callLegacyHook()
#6 /var/www/wikimini.org/upgrade_wikivalley/1.39/includes/HookContainer/HookRunner.php(2526): MediaWiki\HookContainer\HookContainer->run()
#7 /var/www/wikimini.org/upgrade_wikivalley/1.39/includes/MediaWiki.php(506): MediaWiki\HookContainer\HookRunner->onMediaWikiPerformAction()
#8 /var/www/wikimini.org/upgrade_wikivalley/1.39/includes/MediaWiki.php(322): MediaWiki->performAction()
#9 /var/www/wikimini.org/upgrade_wikivalley/1.39/includes/MediaWiki.php(904): MediaWiki->performRequest()
#10 /var/www/wikimini.org/upgrade_wikivalley/1.39/includes/MediaWiki.php(562): MediaWiki->main()
#11 /var/www/wikimini.org/upgrade_wikivalley/1.39/index.php(53): MediaWiki->run()
#12 /var/www/wikimini.org/upgrade_wikivalley/1.39/index.php(49): wfIndexMain()
#13 {main}