Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '-20, 20' at line 1 in /www/wwwroot/vanban.lequydonbinhdinh.edu.vn/qlvanban/libs/MysqliDb.php:1995 Stack trace: #0 /www/wwwroot/vanban.lequydonbinhdinh.edu.vn/qlvanban/libs/MysqliDb.php(1995): mysqli->prepare() #1 /www/wwwroot/vanban.lequydonbinhdinh.edu.vn/qlvanban/libs/MysqliDb.php(1601): MysqliDb->_prepareQuery() #2 /www/wwwroot/vanban.lequydonbinhdinh.edu.vn/qlvanban/libs/MysqliDb.php(751): MysqliDb->_buildQuery() #3 /www/wwwroot/vanban.lequydonbinhdinh.edu.vn/qlvanban/libs/MysqliDb.php(2410): MysqliDb->get() #4 /www/wwwroot/vanban.lequydonbinhdinh.edu.vn/qlvanban/models/vanban.php(41): MysqliDb->paginate() #5 /www/wwwroot/vanban.lequydonbinhdinh.edu.vn/qlvanban/controllers/vanban_controller.php(28): VanBan::getWithPage() #6 /www/wwwroot/vanban.lequydonbinhdinh.edu.vn/qlvanban/routes.php(24): VanbanController->list() #7 /www/wwwroot/vanban.lequydonbinhdinh.edu.vn/qlvanban/index.php(28): require_once('...') #8 {main} thrown in /www/wwwroot/vanban.lequydonbinhdinh.edu.vn/qlvanban/libs/MysqliDb.php on line 1995