Fatal error: Uncaught Error: Class "Monolog\Logger" not found in /home/magento/htdocs/vendor/magento/framework/Logger/Monolog.php:16 Stack trace: #0 /home/magento/htdocs/vendor/composer/ClassLoader.php(571): include() #1 /home/magento/htdocs/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile('/home/magento/h...') #2 [internal function]: Composer\Autoload\ClassLoader->loadClass('Magento\\Framewo...') #3 /home/magento/htdocs/vendor/magento/framework/Code/Reader/ClassReader.php(34): ReflectionClass->__construct('Magento\\Framewo...') #4 /home/magento/htdocs/vendor/magento/framework/ObjectManager/Definition/Runtime.php(50): Magento\Framework\Code\Reader\ClassReader->getConstructor('Magento\\Framewo...') #5 /home/magento/htdocs/vendor/magento/framework/ObjectManager/Factory/Dynamic/Developer.php(48): Magento\Framework\ObjectManager\Definition\Runtime->getParameters('Magento\\Framewo...') #6 /home/magento/htdocs/vendor/magento/framework/ObjectManager/ObjectManager.php(73): Magento\Framework\ObjectManager\Factory\Dynamic\Developer->create('Magento\\Framewo...') #7 /home/magento/htdocs/vendor/magento/framework/Logger/LoggerProxy.php(101): Magento\Framework\ObjectManager\ObjectManager->get('Magento\\Framewo...') #8 /home/magento/htdocs/vendor/magento/framework/Logger/LoggerProxy.php(131): Magento\Framework\Logger\LoggerProxy->getLogger() #9 /home/magento/htdocs/vendor/magento/framework/App/Bootstrap.php(445): Magento\Framework\Logger\LoggerProxy->critical(Object(Error)) #10 /home/magento/htdocs/vendor/magento/framework/App/Bootstrap.php(275): Magento\Framework\App\Bootstrap->terminate(Object(Error)) #11 /home/magento/htdocs/pub/index.php(30): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http\Interceptor)) #12 {main} thrown in /home/magento/htdocs/vendor/magento/framework/Logger/Monolog.php on line 16