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 DISTINCT t1.smw_id AS id,t1.smw_title AS t,t1.smw_namespace AS ns,t1.smw_iw AS iw,t1.smw_subobject AS so,t1.smw_sortkey AS sortkey FROM `smw_object_ids` AS t1 WHERE t1.smw_id='181709' ORDER BY t1.smw_sortkey ASC LIMIT 2
Function: SMW::getQueryResult
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 DISTINC...', 'SMW::getQueryRe...', false)
#1 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(1358): DatabaseBase->query('SELECT DISTINC...', 'SMW::getQueryRe...')
#2 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3_Queries.php(430): DatabaseBase->select('`smw_object_ids...', 'DISTINCT t1.smw...', 't1.smw_id='1817...', 'SMW::getQueryRe...', Array)
#3 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3_Queries.php(307): SMWSQLStore3QueryEngine->getInstanceQueryResult(Object(SMWQuery), 1)
#4 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3.php(354): SMWSQLStore3QueryEngine->getQueryResult(Object(SMWQuery))
#5 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/SMW_QueryProcessor.php(505): SMWSQLStore3->getQueryResult(Object(SMWQuery))
#6 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/parserhooks/SMW_Ask.php(40): SMWQueryProcessor::getResultFromQuery(Object(SMWQuery), Array, 2, 1)
#7 [internal function]: SMWAsk::render(Object(Parser), '[[Fuel Price Da...', '?Fuel Price Cou...', 'limit=1', 'format=array', 'link=none', 'headers=hide', 'mainlabel=-', 'searchlabel=???...', 'titles=show', 'hidegaps=none', 'sep=,', 'propsep=', 'headersep=')
#8 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(3197): call_user_func_array(Array, Array)
#9 /var/www/ISWiki/prod/current/lib/includes/parser/Preprocessor_DOM.php(1043): Parser->braceSubstitution(Array, Object(PPTemplateFrame_DOM))
#10 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(3185): PPFrame_DOM->expand(Object(PPNode_DOM))
#11 /var/www/ISWiki/prod/current/lib/includes/parser/Preprocessor_DOM.php(1043): Parser->braceSubstitution(Array, Object(PPTemplateFrame_DOM))
#12 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(3357): PPFrame_DOM->expand(Object(PPNode_DOM))
#13 /var/www/ISWiki/prod/current/lib/includes/parser/Preprocessor_DOM.php(1043): Parser->braceSubstitution(Array, Object(PPFrame_DOM))
#14 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(2986): PPFrame_DOM->expand(Object(PPNode_DOM), 0)
#15 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(1099): Parser->replaceVariables('{{Fuel Price Da...')
#16 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(345): Parser->internalParse('{{Fuel Price Da...')
#17 /var/www/ISWiki/prod/current/lib/includes/WikiPage.php(2914): Parser->parse('{{Fuel Price Da...', Object(Title), Object(ParserOptions), true, true, 260127)
#18 /var/www/ISWiki/prod/current/lib/includes/PoolCounter.php(187): PoolWorkArticleView->doWork()
#19 /var/www/ISWiki/prod/current/lib/includes/Article.php(587): PoolCounterWork->execute()
#20 /var/www/ISWiki/prod/current/lib/includes/actions/ViewAction.php(40): Article->view()
#21 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(484): ViewAction->show()
#22 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(278): MediaWiki->performAction(Object(Article))
#23 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(593): MediaWiki->performRequest()
#24 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(503): MediaWiki->main()
#25 /var/www/ISWiki/prod/current/lib/index.php(58): MediaWiki->run()
#26 {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}