Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared in /var/www/html/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php:119 Stack trace: #0 /var/www/html/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php(119): PDOStatement->execute() #1 /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(370): Doctrine\DBAL\Driver\PDOStatement->execute() #2 /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(664): Illuminate\Database\Connection->Illuminate\Database\{closure}() #3 /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(631): Illuminate\Database\Connection->runQueryCallback() #4 /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(373): Illuminate\Database\Connection->run() #5 [internal function]: Illuminate\Database\Connection->cursor() #6 /var/www/html/lib/pkp/classes/session/SessionDAO.inc.php(37): Generator->current() #7 /var/www/html/lib/pkp/classes/session/SessionManager.inc.php(170): SessionDAO->getSession() #8 [internal function]: SessionManager->read() #9 /var/www/html/lib/pkp/classes/session/SessionManager.inc.php(60): session_start() #10 /var/www/html/lib/pkp/classes/session/SessionManager.inc.php(131): SessionManager->__construct() #11 /var/www/html/lib/pkp/classes/i18n/PKPLocale.inc.php(131): SessionManager::getManager() #12 /var/www/html/lib/pkp/classes/i18n/PKPLocale.inc.php(290): PKPLocale::getLocale() #13 /var/www/html/lib/pkp/classes/core/Dispatcher.inc.php(116): PKPLocale::initialize() #14 /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php(362): Dispatcher->dispatch() #15 /var/www/html/index.php(68): PKPApplication->execute() #16 {main} Next Doctrine\DBAL\Driver\PDO\Exception: SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared in /var/www/html/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDO/Exception.php:18 Stack trace: #0 /var/www/html/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php(121): Doctrine\DBAL\Driver\PDO\Exception::new() #1 /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(370): Doctrine\DBAL\Driver\PDOStatement->execute() #2 /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(664): Illuminate\Database\Connection->Illuminate\Database\{closure}() #3 /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(631): Illuminate\Database\Connection->runQueryCallback() #4 /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(373): Illuminate\Database\Connection->run() #5 [internal function]: Illuminate\Database\Connection->cursor() #6 /var/www/html/lib/pkp/classes/session/SessionDAO.inc.php(37): Generator->current() #7 /var/www/html/lib/pkp/classes/session/SessionManager.inc.php(170): SessionDAO->getSession() #8 [internal function]: SessionManager->read() #9 /var/www/html/lib/pkp/classes/session/SessionManager.inc.php(60): session_start() #10 /var/www/html/lib/pkp/classes/session/SessionManager.inc.php(131): SessionManager->__construct() #11 /var/www/html/lib/pkp/classes/i18n/PKPLocale.inc.php(131): SessionManager::getManager() #12 /var/www/html/lib/pkp/classes/i18n/PKPLocale.inc.php(290): PKPLocale::getLocale() #13 /var/www/html/lib/pkp/classes/core/Dispatcher.inc.php(116): PKPLocale::initialize() #14 /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php(362): Dispatcher->dispatch() #15 /var/www/html/index.php(68): PKPApplication->execute() #16 {main} Next Illuminate\Database\QueryException: SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: SELECT * FROM sessions WHERE session_id = tvcbq0nf42s8alnsll8qam3j4o) in /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php:671 Stack trace: #0 /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(631): Illuminate\Database\Connection->runQueryCallback() #1 /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(373): Illuminate\Database\Connection->run() #2 [internal function]: Illuminate\Database\Connection->cursor() #3 /var/www/html/lib/pkp/classes/session/SessionDAO.inc.php(37): Generator->current() #4 /var/www/html/lib/pkp/classes/session/SessionManager.inc.php(170): SessionDAO->getSession() #5 [internal function]: SessionManager->read() #6 /var/www/html/lib/pkp/classes/session/SessionManager.inc.php(60): session_start() #7 /var/www/html/lib/pkp/classes/session/SessionManager.inc.php(131): SessionManager->__construct() #8 /var/www/html/lib/pkp/classes/i18n/PKPLocale.inc.php(131): SessionManager::getManager() #9 /var/www/html/lib/pkp/classes/i18n/PKPLocale.inc.php(290): PKPLocale::getLocale() #10 /var/www/html/lib/pkp/classes/core/Dispatcher.inc.php(116): PKPLocale::initialize() #11 /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php(362): Dispatcher->dispatch() #12 /var/www/html/index.php(68): PKPApplication->execute() #13 {main} thrown in /var/www/html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php on line 671