Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 1 Can't create/write to file '/tmp/#sql-temptable-99918-371-218.MAI' (Errcode: 23 "Too many open files in system") in /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php:419 Stack trace: #0 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(419): PDOStatement->execute() #1 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(753): Illuminate\Database\Connection->Illuminate\Database\{closure}() #2 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(720): Illuminate\Database\Connection->runQueryCallback() #3 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(405): Illuminate\Database\Connection->run() #4 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2705): Illuminate\Database\Connection->select() #5 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2694): Illuminate\Database\Query\Builder->runSelect() #6 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3230): Illuminate\Database\Query\Builder->Illuminate\Database\Query\{closure}() #7 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2693): Illuminate\Database\Query\Builder->onceWithColumns() #8 /home/journal.unita.ac.id/public_html/lib/pkp/classes/category/DAO.php(96): Illuminate\Database\Query\Builder->get() #9 /home/journal.unita.ac.id/public_html/lib/pkp/classes/category/Collector.php(60): PKP\category\DAO->getMany() #10 /home/journal.unita.ac.id/public_html/pages/article/ArticleHandler.php(248): PKP\category\Collector->getMany() #11 [internal function]: APP\pages\article\ArticleHandler->view() #12 /home/journal.unita.ac.id/public_html/lib/pkp/classes/core/PKPRouter.php(334): call_user_func() #13 /home/journal.unita.ac.id/public_html/lib/pkp/classes/core/PKPPageRouter.php(278): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest() #14 /home/journal.unita.ac.id/public_html/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\PKPPageRouter->route() #15 /home/journal.unita.ac.id/public_html/lib/pkp/classes/core/PKPApplication.php(395): PKP\core\Dispatcher->dispatch() #16 /home/journal.unita.ac.id/public_html/index.php(21): PKP\core\PKPApplication->execute() #17 {main} Next Illuminate\Database\QueryException: SQLSTATE[HY000]: General error: 1 Can't create/write to file '/tmp/#sql-temptable-99918-371-218.MAI' (Errcode: 23 "Too many open files in system") (SQL: select `c`.* from `categories` as `c` left join `categories` as `pc` on `c`.`parent_id` = `pc`.`category_id` where `c`.`category_id` in (select `category_id` from `publication_categories` where `publication_id` in (427)) order by (COALESCE((pc.seq * 8192) + pc.category_id, 0) * 8192) + CASE WHEN pc.category_id IS NULL THEN 8192 * ((c.seq * 8192) + c.category_id) ELSE c.seq END asc) in /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php:760 Stack trace: #0 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(720): Illuminate\Database\Connection->runQueryCallback() #1 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(405): Illuminate\Database\Connection->run() #2 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2705): Illuminate\Database\Connection->select() #3 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2694): Illuminate\Database\Query\Builder->runSelect() #4 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3230): Illuminate\Database\Query\Builder->Illuminate\Database\Query\{closure}() #5 /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2693): Illuminate\Database\Query\Builder->onceWithColumns() #6 /home/journal.unita.ac.id/public_html/lib/pkp/classes/category/DAO.php(96): Illuminate\Database\Query\Builder->get() #7 /home/journal.unita.ac.id/public_html/lib/pkp/classes/category/Collector.php(60): PKP\category\DAO->getMany() #8 /home/journal.unita.ac.id/public_html/pages/article/ArticleHandler.php(248): PKP\category\Collector->getMany() #9 [internal function]: APP\pages\article\ArticleHandler->view() #10 /home/journal.unita.ac.id/public_html/lib/pkp/classes/core/PKPRouter.php(334): call_user_func() #11 /home/journal.unita.ac.id/public_html/lib/pkp/classes/core/PKPPageRouter.php(278): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest() #12 /home/journal.unita.ac.id/public_html/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\PKPPageRouter->route() #13 /home/journal.unita.ac.id/public_html/lib/pkp/classes/core/PKPApplication.php(395): PKP\core\Dispatcher->dispatch() #14 /home/journal.unita.ac.id/public_html/index.php(21): PKP\core\PKPApplication->execute() #15 {main} thrown in /home/journal.unita.ac.id/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php on line 760