MediaWiki internal error.
Original exception: exception 'DBQueryError' with message 'A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: https://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SELECT o_blob AS v0,o_hash AS v1 FROM `smw_fpt_pval` WHERE s_id='55264'
Function: SMW::getSemanticData
Error: 1927 Lost connection to backend server: connection closed by peer (server3: Generated event) (database_maxscale:4006)
' in /var/www/ISWiki/prod/current/lib/includes/db/Database.php:918
Stack trace:
#0 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(885): DatabaseBase->reportQueryError('Lost connection...', 1927, 'SELECT o_blob ...', 'SMW::getSemanti...', false)
#1 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(1358): DatabaseBase->query('SELECT o_blob ...', 'SMW::getSemanti...')
#2 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3_Readers.php(328): DatabaseBase->select('`smw_fpt_pval`', 'o_blob AS v0,o_...', 's_id='55264'', 'SMW::getSemanti...', Array)
#3 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3_Readers.php(135): SMWSQLStore3Readers->fetchSemanticData('55264', Object(SMWDIWikiPage), Object(SMWSQLStore3Table))
#4 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3_Readers.php(178): SMWSQLStore3Readers->getSemanticDataFromTable('55264', Object(SMWDIWikiPage), Object(SMWSQLStore3Table))
#5 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3.php(298): SMWSQLStore3Readers->getPropertyValues(Object(SMWDIWikiPage), Object(SMWDIProperty), NULL)
#6 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/datavalues/SMW_DataValue.php(720): SMWSQLStore3->getPropertyValues(Object(SMWDIWikiPage), Object(SMWDIProperty))
#7 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/datavalues/SMW_DataValue.php(172): SMWDataValue->checkAllowedValues()
#8 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/SMW_DataValueFactory.php(113): SMWDataValue->setUserValue('Producing Metha...', false)
#9 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/SMW_DataValueFactory.php(183): SMWDataValueFactory::newTypeIdValue('_txt', 'Producing Metha...', false, Object(SMWDIProperty), Object(SMWDIWikiPage))
#10 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/SMW_ParseData.php(171): SMWDataValueFactory::newPropertyObjectValue(Object(SMWDIProperty), 'Producing Metha...', false, Object(SMWDIWikiPage))
#11 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/parserhooks/SMW_Set.php(34): SMWParseData::addProperty('BL Title', 'Producing Metha...', false, Object(Parser), true)
#12 [internal function]: SMWSet::render(Object(Parser), 'BL Title=Produc...', 'BL Titlesearch=...', 'BL Abstract=', 'BL abstractsear...', 'BL abstractsear...', 'BL Source=', 'BL Year=2010', 'BL Topics=', 'BL Type=', 'BL Language=Eng...', 'BL Language EN=...', 'BL Language FR=', 'BL Language AR=', 'BL Language RU=', 'BL Language CN=', 'BL Language SP=', 'BL Language PR=', 'BL Language DE=', 'BL Language Oth...', 'BL Language=Eng...', 'BL Language URL...', 'BL Language URL...', 'BL Language URL...', 'BL Language URL...', 'BL Language URL...', 'BL Language URL...', 'BL Language URL...', 'BL Language URL...', 'BL Language URL...', 'REPRC Country=', 'REPRC Country i...', 'REPRC Country i...', 'REPRC Country i...', 'REPRC Country i...', 'REPRC Country i...', 'REPRC Country i...', 'REPRC Country i...', 'REPRC Region Af...', 'REPRC Region Ea...', 'REPRC Region Eu...', 'REPRC Region La...', 'REPRC Region Mi...', 'REPRC Region No...', 'REPRC Region So...')
#13 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(3197): call_user_func_array(Array, Array)
#14 /var/www/ISWiki/prod/current/lib/includes/parser/Preprocessor_DOM.php(1043): Parser->braceSubstitution(Array, Object(PPTemplateFrame_DOM))
#15 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(3357): PPFrame_DOM->expand(Object(PPNode_DOM))
#16 /var/www/ISWiki/prod/current/lib/includes/parser/Preprocessor_DOM.php(1043): Parser->braceSubstitution(Array, Object(PPFrame_DOM))
#17 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(2986): PPFrame_DOM->expand(Object(PPNode_DOM), 0)
#18 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(1099): Parser->replaceVariables('?{{Biogas Libra...')
#19 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(345): Parser->internalParse('?{{Biogas Libra...')
#20 /var/www/ISWiki/prod/current/lib/includes/WikiPage.php(2914): Parser->parse('?{{Biogas Libra...', Object(Title), Object(ParserOptions), true, true, 154167)
#21 /var/www/ISWiki/prod/current/lib/includes/PoolCounter.php(187): PoolWorkArticleView->doWork()
#22 /var/www/ISWiki/prod/current/lib/includes/WikiPage.php(862): PoolCounterWork->execute()
#23 /var/www/ISWiki/prod/current/lib/includes/diff/DifferenceEngine.php(523): WikiPage->getParserOutput(Object(ParserOptions), 154167)
#24 /var/www/ISWiki/prod/current/lib/includes/diff/DifferenceEngine.php(387): DifferenceEngine->renderNewRevision()
#25 /var/www/ISWiki/prod/current/lib/includes/Article.php(682): DifferenceEngine->showDiffPage(false)
#26 /var/www/ISWiki/prod/current/lib/includes/Article.php(434): Article->showDiffPage()
#27 /var/www/ISWiki/prod/current/lib/includes/actions/ViewAction.php(40): Article->view()
#28 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(484): ViewAction->show()
#29 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(278): MediaWiki->performAction(Object(Article))
#30 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(593): MediaWiki->performRequest()
#31 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(503): MediaWiki->main()
#32 /var/www/ISWiki/prod/current/lib/index.php(58): MediaWiki->run()
#33 {main}
Exception caught inside exception handler: exception 'DBQueryError' with message 'A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: https://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SELECT value,exptime FROM `objectcache` WHERE keyname = 'webmol_energypedia:resourceloader:filter:minify-css:7:c88e2bcd56513749bec09a7e29cb3ffa' LIMIT 1
Function: SqlBagOStuff::get
Error: 1927 Lost connection to backend server: connection closed by peer (server3: Generated event) (database_maxscale:4006)
' in /var/www/ISWiki/prod/current/lib/includes/db/Database.php:918
Stack trace:
#0 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(885): DatabaseBase->reportQueryError('Lost connection...', 1927, 'SELECT value,e...', 'SqlBagOStuff::g...', false)
#1 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(1358): DatabaseBase->query('SELECT value,e...', 'SqlBagOStuff::g...')
#2 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(1445): DatabaseBase->select('objectcache', Array, Array, 'SqlBagOStuff::g...', Array, Array)
#3 /var/www/ISWiki/prod/current/lib/includes/objectcache/SqlBagOStuff.php(124): DatabaseBase->selectRow('objectcache', Array, Array, 'SqlBagOStuff::g...')
#4 /var/www/ISWiki/prod/current/lib/includes/resourceloader/ResourceLoader.php(149): SqlBagOStuff->get('webmol_energype...')
#5 /var/www/ISWiki/prod/current/lib/includes/resourceloader/ResourceLoader.php(783): ResourceLoader->filter('minify-css', 'a:lang(ar), a:l...')
#6 /var/www/ISWiki/prod/current/lib/includes/OutputPage.php(2594): ResourceLoader->makeModuleResponse(Object(ResourceLoaderContext), Array)
#7 /var/www/ISWiki/prod/current/lib/includes/OutputPage.php(3310): OutputPage->makeResourceLoaderLink(Array, 'styles')
#8 /var/www/ISWiki/prod/current/lib/includes/OutputPage.php(2407): OutputPage->buildCssLinks()
#9 /var/www/ISWiki/prod/current/lib/includes/SkinTemplate.php(465): OutputPage->headElement(Object(SkinIswiki))
#10 /var/www/ISWiki/prod/current/lib/includes/OutputPage.php(1982): SkinTemplate->outputPage()
#11 /var/www/ISWiki/prod/current/lib/includes/Exception.php(182): OutputPage->output()
#12 /var/www/ISWiki/prod/current/lib/includes/Exception.php(209): MWException->reportHTML()
#13 /var/www/ISWiki/prod/current/lib/includes/Exception.php(490): MWException->report()
#14 /var/www/ISWiki/prod/current/lib/includes/Exception.php(569): MWExceptionHandler::report(Object(DBQueryError))
#15 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(506): MWExceptionHandler::handle(Object(DBQueryError))
#16 /var/www/ISWiki/prod/current/lib/index.php(58): MediaWiki->run()
#17 {main}