Fatal error: Uncaught Error: Class "Psr\Log\LogLevel" not found in /var/www/html/app/Config/Exceptions.php:81 Stack trace: #0 /var/www/html/system/Config/Factories.php(236): [constant expression]() #1 /var/www/html/system/Config/Factories.php(170): CodeIgniter\Config\Factories::createInstance('config', 'Config\\Exceptio...', Array) #2 /var/www/html/system/Config/Factories.php(189): CodeIgniter\Config\Factories::__callStatic('config', Array) #3 /var/www/html/system/Common.php(208): CodeIgniter\Config\Factories::get('config', 'Config\\Exceptio...') #4 /var/www/html/system/Config/Services.php(276): config('Config\\Exceptio...') #5 /var/www/html/system/Config/BaseService.php(312): CodeIgniter\Config\Services::exceptions(NULL, false) #6 /var/www/html/system/Config/BaseService.php(251): CodeIgniter\Config\BaseService::__callStatic('exceptions', Array) #7 /var/www/html/system/Config/Services.php(273): CodeIgniter\Config\BaseService::getSharedInstance('exceptions', NULL) #8 /var/www/html/system/Config/BaseService.php(321): CodeIgniter\Config\Services::exceptions() #9 /var/www/html/system/Config/BaseService.php(202): CodeIgniter\Config\BaseService::__callStatic('exceptions', Array) #10 /var/www/html/system/Common.php(1027): CodeIgniter\Config\BaseService::get('exceptions') #11 /var/www/html/system/Boot.php(292): service('exceptions') #12 /var/www/html/system/Boot.php(56): CodeIgniter\Boot::setExceptionHandler() #13 /var/www/html/public/index.php(59): CodeIgniter\Boot::bootWeb(Object(Config\Paths)) #14 {main} thrown in /var/www/html/app/Config/Exceptions.php on line 81