Use of ParserOutput::addModules with non-array argument was deprecated in MediaWiki 1.38. [Called from HeaderTabs::tag in /var/www/html/extensions/HeaderTabs/includes/HeaderTabs.php at line 26]

Backtrace:

MWDebug.php line 387 calls wfBacktrace()
MWDebug.php line 352 calls MWDebug::sendRawDeprecated()
MWDebug.php line 233 calls MWDebug::deprecatedMsg()
GlobalFunctions.php line 765 calls MWDebug::deprecated()
ParserOutput.php line 1180 calls wfDeprecated()
HeaderTabs.php line 26 calls ParserOutput->addModules()
Parser.php line 4017 calls HeaderTabs::tag()
PPFrame_Hash.php line 353 calls Parser->extensionSubstitution()
Parser.php line 3313 calls PPFrame_Hash->expand()
PPFrame_Hash.php line 275 calls Parser->braceSubstitution()
Parser.php line 2951 calls PPFrame_Hash->expand()
Parser.php line 1609 calls Parser->replaceVariables()
Parser.php line 723 calls Parser->internalParse()
WikitextContentHandler.php line 301 calls Parser->parse()
ContentHandler.php line 1721 calls WikitextContentHandler->fillParserOutput()
ContentRenderer.php line 47 calls ContentHandler->getParserOutput()
RenderedRevision.php line 266 calls MediaWiki\Content\Renderer\ContentRenderer->getParserOutput()
RenderedRevision.php line 237 calls MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached()
RevisionRenderer.php line 221 calls MediaWiki\Revision\RenderedRevision->getSlotParserOutput()
RevisionRenderer.php line 158 calls MediaWiki\Revision\RevisionRenderer->combineSlotOutput()
- line - calls MediaWiki\Revision\RevisionRenderer->MediaWiki\Revision\{closure}()
RenderedRevision.php line 199 calls call_user_func()
PoolWorkArticleView.php line 91 calls MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
PoolWorkArticleViewOld.php line 66 calls PoolWorkArticleView->renderRevision()
PoolCounterWork.php line 162 calls PoolWorkArticleViewOld->doWork()
ParserOutputAccess.php line 299 calls PoolCounterWork->execute()
Article.php line 714 calls MediaWiki\Page\ParserOutputAccess->getParserOutput()
Article.php line 528 calls Article->generateContentOutput()
ViewAction.php line 78 calls Article->view()
MediaWiki.php line 542 calls ViewAction->show()
MediaWiki.php line 322 calls MediaWiki->performAction()
MediaWiki.php line 904 calls MediaWiki->performRequest()
MediaWiki.php line 562 calls MediaWiki->main()
index.php line 50 calls MediaWiki->run()
index.php line 46 calls wfIndexMain()

Source	20100939 fax/Goods and Services Contracts, 20100922 fax
Supplier	Advanced Tent Rental Ltd.
Canadian dollar cost 2010	$800000.0
Procurement Process	Competitive

2010/G20 and G8 Budget/Tent rental

Tent rental

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