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 * FROM `webmol_energypedia`.`interwiki` WHERE iw_prefix = 'creation_date'
Function: Interwiki::load
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 * FROM...', 'Interwiki::load', false)
#1 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(1358): DatabaseBase->query('SELECT * FROM...', 'Interwiki::load')
#2 /var/www/ISWiki/prod/current/lib/includes/interwiki/Interwiki.php(168): DatabaseBase->select('interwiki', '*', Array, 'Interwiki::load')
#3 /var/www/ISWiki/prod/current/lib/includes/interwiki/Interwiki.php(60): Interwiki::load('creation_date')
#4 /var/www/ISWiki/prod/current/lib/includes/interwiki/Interwiki.php(37): Interwiki::fetch('Creation_date')
#5 /var/www/ISWiki/prod/current/lib/includes/Title.php(2973): Interwiki::isValidInterwiki('Creation_date')
#6 /var/www/ISWiki/prod/current/lib/includes/Title.php(149): Title->secureAndSplit()
#7 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/SMW_QueryProcessor.php(364): Title::newFromText('Creation date::', 102)
#8 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/SMW_QueryProcessor.php(302): SMWQueryProcessor::getSMWPrintRequestFromString('Creation date::', false)
#9 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/SMW_QueryProcessor.php(418): SMWQueryProcessor::getComponentsFromFunctionParams(Array, false)
#10 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/parserhooks/SMW_Ask.php(38): SMWQueryProcessor::getQueryAndParamsFromFunctionParams(Array, 2, 1, false)
#11 [internal function]: SMWAsk::render(Object(Parser), '[[Category:Sola...', '?Creation date:...', 'sort=Creation d...', 'order=desc', 'format=ul', 'limit=30', 'searchlabel=Fur...', 'default=Current...')
#12 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(3197): call_user_func_array(Array, Array)
#13 /var/www/ISWiki/prod/current/lib/includes/parser/Preprocessor_DOM.php(1043): Parser->braceSubstitution(Array, Object(PPTemplateFrame_DOM))
#14 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(3352): PPFrame_DOM->expand(Object(PPNode_DOM))
#15 /var/www/ISWiki/prod/current/lib/includes/parser/Preprocessor_DOM.php(1043): Parser->braceSubstitution(Array, Object(PPTemplateFrame_DOM))
#16 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(3357): PPFrame_DOM->expand(Object(PPNode_DOM))
#17 /var/www/ISWiki/prod/current/lib/includes/parser/Preprocessor_DOM.php(1043): Parser->braceSubstitution(Array, Object(PPFrame_DOM))
#18 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(2986): PPFrame_DOM->expand(Object(PPNode_DOM), 0)
#19 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(1099): Parser->replaceVariables('?{{CES Country|...')
#20 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(345): Parser->internalParse('?{{CES Country|...')
#21 /var/www/ISWiki/prod/current/lib/includes/WikiPage.php(2914): Parser->parse('?{{CES Country|...', Object(Title), Object(ParserOptions), true, true, 293711)
#22 /var/www/ISWiki/prod/current/lib/includes/PoolCounter.php(187): PoolWorkArticleView->doWork()
#23 /var/www/ISWiki/prod/current/lib/includes/Article.php(587): PoolCounterWork->execute()
#24 /var/www/ISWiki/prod/current/lib/includes/actions/ViewAction.php(40): Article->view()
#25 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(484): ViewAction->show()
#26 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(278): MediaWiki->performAction(Object(Article))
#27 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(593): MediaWiki->performRequest()
#28 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(503): MediaWiki->main()
#29 /var/www/ISWiki/prod/current/lib/index.php(58): MediaWiki->run()
#30 {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}