Fatal error: Uncaught PDOException: SQLSTATE[HY000] [2002] Connection refused in /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php:66 Stack trace: #0 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(66): PDO->__construct('mysql:host=mysq...', 'root', Object(SensitiveParameterValue), Array) #1 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(85): Illuminate\Database\Connectors\Connector->createPdoConnection('mysql:host=mysq...', 'root', Object(SensitiveParameterValue), Array) #2 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(48): Illuminate\Database\Connectors\Connector->tryAgainIfCausedByLostConnection(Object(PDOException), 'mysql:host=mysq...', 'root', Object(SensitiveParameterValue), Array) #3 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/MySqlConnector.php(24): Illuminate\Database\Connectors\Connector->createConnection('mysql:host=mysq...', Array, Array) #4 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/ConnectionFactory.php(185): Illuminate\Database\Connectors\MySqlConnector->connect(Array) #5 [internal function]: Illuminate\Database\Connectors\ConnectionFactory->Illuminate\Database\Connectors\{closure}() #6 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(1231): call_user_func(Object(Closure)) #7 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(1267): Illuminate\Database\Connection->getPdo() #8 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(512): Illuminate\Database\Connection->getReadPdo() #9 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(407): Illuminate\Database\Connection->getPdoForSelect(true) #10 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(812): Illuminate\Database\Connection->Illuminate\Database\{closure}('select * from `...', Array) #11 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(979): Illuminate\Database\Connection->runQueryCallback('select * from `...', Array, Object(Closure)) #12 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(958): Illuminate\Database\Connection->tryAgainIfCausedByLostConnection(Object(Illuminate\Database\QueryException), 'select * from `...', Array, Object(Closure)) #13 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(781): Illuminate\Database\Connection->handleQueryException(Object(Illuminate\Database\QueryException), 'select * from `...', Array, Object(Closure)) #14 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(398): Illuminate\Database\Connection->run('select * from `...', Array, Object(Closure)) #15 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3106): Illuminate\Database\Connection->select('select * from `...', Array, true) #16 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3091): Illuminate\Database\Query\Builder->runSelect() #17 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3676): Illuminate\Database\Query\Builder->Illuminate\Database\Query\{closure}() #18 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3090): Illuminate\Database\Query\Builder->onceWithColumns(Array, Object(Closure)) #19 /var/www/html/cadernos/lib/pkp/classes/core/SettingsBuilder.php(305): Illuminate\Database\Query\Builder->get() #20 /var/www/html/cadernos/lib/pkp/classes/core/SettingsBuilder.php(41): PKP\core\SettingsBuilder->getModelWithSettings(Array) #21 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(793): PKP\core\SettingsBuilder->getModels(Array) #22 /var/www/html/cadernos/pages/article/ArticleHandler.php(291): Illuminate\Database\Eloquent\Builder->get() #23 [internal function]: APP\pages\article\ArticleHandler->view(Array, Object(APP\core\Request)) #24 /var/www/html/cadernos/lib/pkp/classes/core/PKPRouter.php(327): call_user_func(Array, Array, Object(APP\core\Request)) #25 /var/www/html/cadernos/lib/pkp/classes/core/PKPPageRouter.php(249): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(APP\core\Request), Array, false) #26 /var/www/html/cadernos/lib/pkp/classes/core/Dispatcher.php(157): PKP\core\PKPPageRouter->route(Object(APP\core\Request)) #27 /var/www/html/cadernos/lib/pkp/classes/core/PKPApplication.php(429): PKP\core\Dispatcher->dispatch(Object(APP\core\Request)) #28 /var/www/html/cadernos/index.php(21): PKP\core\PKPApplication->execute() #29 {main} Next Illuminate\Database\QueryException: SQLSTATE[HY000] [2002] Connection refused (Connection: mysql, SQL: select * from `user_groups` inner join `authors` as `a` on `user_groups`.`user_group_id` = `a`.`user_group_id` where `a`.`publication_id` in (71)) in /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php:825 Stack trace: #0 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(979): Illuminate\Database\Connection->runQueryCallback('select * from `...', Array, Object(Closure)) #1 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(958): Illuminate\Database\Connection->tryAgainIfCausedByLostConnection(Object(Illuminate\Database\QueryException), 'select * from `...', Array, Object(Closure)) #2 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(781): Illuminate\Database\Connection->handleQueryException(Object(Illuminate\Database\QueryException), 'select * from `...', Array, Object(Closure)) #3 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(398): Illuminate\Database\Connection->run('select * from `...', Array, Object(Closure)) #4 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3106): Illuminate\Database\Connection->select('select * from `...', Array, true) #5 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3091): Illuminate\Database\Query\Builder->runSelect() #6 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3676): Illuminate\Database\Query\Builder->Illuminate\Database\Query\{closure}() #7 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3090): Illuminate\Database\Query\Builder->onceWithColumns(Array, Object(Closure)) #8 /var/www/html/cadernos/lib/pkp/classes/core/SettingsBuilder.php(305): Illuminate\Database\Query\Builder->get() #9 /var/www/html/cadernos/lib/pkp/classes/core/SettingsBuilder.php(41): PKP\core\SettingsBuilder->getModelWithSettings(Array) #10 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(793): PKP\core\SettingsBuilder->getModels(Array) #11 /var/www/html/cadernos/pages/article/ArticleHandler.php(291): Illuminate\Database\Eloquent\Builder->get() #12 [internal function]: APP\pages\article\ArticleHandler->view(Array, Object(APP\core\Request)) #13 /var/www/html/cadernos/lib/pkp/classes/core/PKPRouter.php(327): call_user_func(Array, Array, Object(APP\core\Request)) #14 /var/www/html/cadernos/lib/pkp/classes/core/PKPPageRouter.php(249): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(APP\core\Request), Array, false) #15 /var/www/html/cadernos/lib/pkp/classes/core/Dispatcher.php(157): PKP\core\PKPPageRouter->route(Object(APP\core\Request)) #16 /var/www/html/cadernos/lib/pkp/classes/core/PKPApplication.php(429): PKP\core\Dispatcher->dispatch(Object(APP\core\Request)) #17 /var/www/html/cadernos/index.php(21): PKP\core\PKPApplication->execute() #18 {main} thrown in /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php on line 825

Fatal error: Uncaught PDOException: SQLSTATE[HY000] [2002] Connection refused in /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php:66 Stack trace: #0 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(66): PDO->__construct('mysql:host=mysq...', 'root', Object(SensitiveParameterValue), Array) #1 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(85): Illuminate\Database\Connectors\Connector->createPdoConnection('mysql:host=mysq...', 'root', Object(SensitiveParameterValue), Array) #2 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(48): Illuminate\Database\Connectors\Connector->tryAgainIfCausedByLostConnection(Object(PDOException), 'mysql:host=mysq...', 'root', Object(SensitiveParameterValue), Array) #3 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/MySqlConnector.php(24): Illuminate\Database\Connectors\Connector->createConnection('mysql:host=mysq...', Array, Array) #4 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connectors/ConnectionFactory.php(185): Illuminate\Database\Connectors\MySqlConnector->connect(Array) #5 [internal function]: Illuminate\Database\Connectors\ConnectionFactory->Illuminate\Database\Connectors\{closure}() #6 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(1231): call_user_func(Object(Closure)) #7 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(592): Illuminate\Database\Connection->getPdo() #8 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(812): Illuminate\Database\Connection->Illuminate\Database\{closure}('update `session...', Array) #9 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(979): Illuminate\Database\Connection->runQueryCallback('update `session...', Array, Object(Closure)) #10 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(958): Illuminate\Database\Connection->tryAgainIfCausedByLostConnection(Object(Illuminate\Database\QueryException), 'update `session...', Array, Object(Closure)) #11 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(781): Illuminate\Database\Connection->handleQueryException(Object(Illuminate\Database\QueryException), 'update `session...', Array, Object(Closure)) #12 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(584): Illuminate\Database\Connection->run('update `session...', Array, Object(Closure)) #13 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(536): Illuminate\Database\Connection->affectingStatement('update `session...', Array) #14 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3830): Illuminate\Database\Connection->update('update `session...', Array) #15 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php(173): Illuminate\Database\Query\Builder->update(Object(Illuminate\Support\Collection)) #16 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php(140): Illuminate\Session\DatabaseSessionHandler->performUpdate('Jq2K6wYBuaKz7Ym...', Array) #17 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Session/Store.php(176): Illuminate\Session\DatabaseSessionHandler->write('Jq2K6wYBuaKz7Ym...', 'a:3:{s:6:"_toke...') #18 /var/www/html/cadernos/lib/pkp/classes/core/PKPSessionServiceProvider.php(38): Illuminate\Session\Store->save() #19 [internal function]: PKP\core\PKPSessionServiceProvider->PKP\core\{closure}() #20 {main} Next Illuminate\Database\QueryException: SQLSTATE[HY000] [2002] Connection refused (Connection: mysql, SQL: update `sessions` set `payload` = YTozOntzOjY6Il90b2tlbiI7czo0MDoiSUJFSkV6ZWJqbXk5S015SXdkbTVDTEU3SHE2eTFpSUZEWmFuNEgySiI7czo2OiJfZmxhc2giO2E6Mjp7czozOiJvbGQiO2E6MDp7fXM6MzoibmV3IjthOjA6e319czoxMzoiY3VycmVudExvY2FsZSI7czoyOiJlbiI7fQ==, `last_activity` = 1793902436, `user_id` = ?, `ip_address` = 172.20.21.9, `user_agent` = Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com) where `id` = Jq2K6wYBuaKz7YmVPVqfrJw1uapNvTT54TL3T1yy) in /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php:825 Stack trace: #0 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(979): Illuminate\Database\Connection->runQueryCallback('update `session...', Array, Object(Closure)) #1 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(958): Illuminate\Database\Connection->tryAgainIfCausedByLostConnection(Object(Illuminate\Database\QueryException), 'update `session...', Array, Object(Closure)) #2 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(781): Illuminate\Database\Connection->handleQueryException(Object(Illuminate\Database\QueryException), 'update `session...', Array, Object(Closure)) #3 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(584): Illuminate\Database\Connection->run('update `session...', Array, Object(Closure)) #4 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(536): Illuminate\Database\Connection->affectingStatement('update `session...', Array) #5 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3830): Illuminate\Database\Connection->update('update `session...', Array) #6 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php(173): Illuminate\Database\Query\Builder->update(Object(Illuminate\Support\Collection)) #7 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php(140): Illuminate\Session\DatabaseSessionHandler->performUpdate('Jq2K6wYBuaKz7Ym...', Array) #8 /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Session/Store.php(176): Illuminate\Session\DatabaseSessionHandler->write('Jq2K6wYBuaKz7Ym...', 'a:3:{s:6:"_toke...') #9 /var/www/html/cadernos/lib/pkp/classes/core/PKPSessionServiceProvider.php(38): Illuminate\Session\Store->save() #10 [internal function]: PKP\core\PKPSessionServiceProvider->PKP\core\{closure}() #11 {main} thrown in /var/www/html/cadernos/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php on line 825