Internal error
[b9d65815aac7126af3d68e32] /index.php?title=Tangle&diff=prev&oldid=2759&printable=yes Error from line 399 of /data/www/ehash/html/extensions/BibTex/BibTex.php: Call to a member function get_field() on null
Backtrace:
#0 /data/www/ehash/html/extensions/BibTex/BibTex.php(589): BibTex->html()
#1 /data/www/ehash/html/includes/parser/Parser.php(3888): renderBibtex()
#2 /data/www/ehash/html/includes/parser/Preprocessor_DOM.php(1362): Parser->extensionSubstitution()
#3 /data/www/ehash/html/includes/parser/Parser.php(2942): PPFrame_DOM->expand()
#4 /data/www/ehash/html/includes/parser/Parser.php(1293): Parser->replaceVariables()
#5 /data/www/ehash/html/includes/parser/Parser.php(443): Parser->internalParse()
#6 /data/www/ehash/html/includes/content/WikitextContent.php(323): Parser->parse()
#7 /data/www/ehash/html/includes/content/AbstractContent.php(516): WikitextContent->fillParserOutput()
#8 /data/www/ehash/html/includes/poolcounter/PoolWorkArticleView.php(141): AbstractContent->getParserOutput()
#9 /data/www/ehash/html/includes/poolcounter/PoolCounterWork.php(123): PoolWorkArticleView->doWork()
#10 /data/www/ehash/html/includes/page/WikiPage.php(1134): PoolCounterWork->execute()
#11 /data/www/ehash/html/includes/diff/DifferenceEngine.php(661): WikiPage->getParserOutput()
#12 /data/www/ehash/html/includes/diff/DifferenceEngine.php(629): DifferenceEngine->getParserOutput()
#13 /data/www/ehash/html/includes/diff/DifferenceEngine.php(480): DifferenceEngine->renderNewRevision()
#14 /data/www/ehash/html/includes/page/Article.php(737): DifferenceEngine->showDiffPage()
#15 /data/www/ehash/html/includes/page/Article.php(464): Article->showDiffPage()
#16 /data/www/ehash/html/includes/actions/ViewAction.php(68): Article->view()
#17 /data/www/ehash/html/includes/MediaWiki.php(500): ViewAction->show()
#18 /data/www/ehash/html/includes/MediaWiki.php(294): MediaWiki->performAction()
#19 /data/www/ehash/html/includes/MediaWiki.php(861): MediaWiki->performRequest()
#20 /data/www/ehash/html/includes/MediaWiki.php(524): MediaWiki->main()
#21 /data/www/ehash/html/index.php(42): MediaWiki->run()
#22 {main}