from /srv/mediawiki/w/vendor/wikimedia/parsoid/src/Html2Wt/SerializerState.php(303)
#0 /srv/mediawiki/w/vendor/wikimedia/parsoid/src/Html2Wt/SerializerState.php(303): MWExceptionHandler::handleError(integer, string, string, integer)
#1 /srv/mediawiki/w/vendor/wikimedia/parsoid/src/Html2Wt/WikitextSerializer.php(131): Wikimedia\Parsoid\Html2Wt\SerializerState->__construct(Wikimedia\Parsoid\Html2Wt\WikitextSerializer, array)
#2 /srv/mediawiki/w/vendor/wikimedia/parsoid/src/Wikitext/ContentModelHandler.php(182): Wikimedia\Parsoid\Html2Wt\WikitextSerializer->__construct(array)
#3 /srv/mediawiki/w/vendor/wikimedia/parsoid/src/Parsoid.php(306): Wikimedia\Parsoid\Wikitext\ContentModelHandler->fromDOM(Wikimedia\Parsoid\Ext\ParsoidExtensionAPI, NULL)
#4 /srv/mediawiki/w/includes/parser/Parsoid/HtmlToContentTransform.php(683): Wikimedia\Parsoid\Parsoid->dom2wikitext(MediaWiki\Parser\Parsoid\Config\PageConfig, Wikimedia\Parsoid\DOM\Document, array, NULL)
#5 /srv/mediawiki/w/includes/parser/Parsoid/HtmlToContentTransform.php(649): MediaWiki\Parser\Parsoid\HtmlToContentTransform->htmlToText()
#6 /srv/mediawiki/w/includes/Rest/Handler/Helper/HtmlInputTransformHelper.php(531): MediaWiki\Parser\Parsoid\HtmlToContentTransform->htmlToContent()
#7 /srv/mediawiki/w/extensions/VisualEditor/includes/DirectParsoidClient.php(236): MediaWiki\Rest\Handler\Helper\HtmlInputTransformHelper->getContent()
#8 /srv/mediawiki/w/extensions/VisualEditor/includes/DualParsoidClient.php(150): MediaWiki\Extension\VisualEditor\DirectParsoidClient->transformHTML(MediaWiki\Title\Title, LanguageJa, string, NULL, NULL)
#9 /srv/mediawiki/w/extensions/VisualEditor/includes/ApiParsoidTrait.php(132): MediaWiki\Extension\VisualEditor\DualParsoidClient->transformHTML(MediaWiki\Title\Title, LanguageJa, string, NULL, NULL)
#10 /srv/mediawiki/w/extensions/DiscussionTools/includes/ApiDiscussionToolsTrait.php(83): MediaWiki\Extension\DiscussionTools\ApiDiscussionToolsPreview->transformHTML(MediaWiki\Title\Title, string)
#11 /srv/mediawiki/w/extensions/DiscussionTools/includes/ApiDiscussionToolsPreview.php(77): MediaWiki\Extension\DiscussionTools\ApiDiscussionToolsPreview->previewMessage(string, MediaWiki\Title\Title, array, array)
#12 /srv/mediawiki/w/includes/api/ApiMain.php(1903): MediaWiki\Extension\DiscussionTools\ApiDiscussionToolsPreview->execute()
#13 /srv/mediawiki/w/includes/api/ApiMain.php(880): ApiMain->executeAction()
#14 /srv/mediawiki/w/includes/api/ApiMain.php(851): ApiMain->executeActionWithErrorHandling()
#15 /srv/mediawiki/w/api.php(91): ApiMain->execute()
#16 /srv/mediawiki/w/api.php(46): wfApiMain()
#17 {main}Running MediaWiki 1.40 and php 8.2