Fatal error: Uncaught Error: Class "Monolog\Handler\AbstractProcessingHandler" not found in /home/magento/htdocs/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php:26 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 /home/magento/htdocs/vendor/magento/framework/Logger/Handler/Base.php(22): Composer\Autoload\ClassLoader->loadClass('Monolog\\Handler...') #3 /home/magento/htdocs/vendor/composer/ClassLoader.php(571): include('/home/magento/h...') #4 /home/magento/htdocs/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile('/home/magento/h...') #5 /home/magento/htdocs/vendor/magento/framework/Logger/Handler/Exception.php(11): Composer\Autoload\ClassLoader->loadClass('Magento\\Framewo...') #6 /home/magento/htdocs/vendor/composer/ClassLoader.php(571): include('/home/magento/h...') #7 /home/magento/htdocs/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile('/home/magento/h...') #8 /home/magento/htdocs/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(121): Composer\Autoload\ClassLoader->loadClass('Magento\\Framewo...') #9 /home/magento/htdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(108): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject('Magento\\Framewo...', Array) #10 /home/magento/htdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Framewo...') #11 /home/magento/htdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get('Magento\\Framewo...') #12 /home/magento/htdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Framewo...') #13 /home/magento/htdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(125): Magento\Framework\ObjectManager\Factory\Compiled->get('Magento\\Framewo...') #14 /home/magento/htdocs/vendor/magento/framework/ObjectManager/Factory/Compiled.php(86): Magento\Framework\ObjectManager\Factory\Compiled->parseArray(Array) #15 /home/magento/htdocs/vendor/magento/framework/ObjectManager/ObjectManager.php(73): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Framewo...') #16 /home/magento/htdocs/vendor/magento/framework/Logger/LoggerProxy.php(101): Magento\Framework\ObjectManager\ObjectManager->get('Magento\\Framewo...') #17 /home/magento/htdocs/vendor/magento/framework/Logger/LoggerProxy.php(131): Magento\Framework\Logger\LoggerProxy->getLogger() #18 /home/magento/htdocs/vendor/magento/framework/App/Bootstrap.php(445): Magento\Framework\Logger\LoggerProxy->critical(Object(Error)) #19 /home/magento/htdocs/vendor/magento/framework/App/Bootstrap.php(275): Magento\Framework\App\Bootstrap->terminate(Object(Error)) #20 /home/magento/htdocs/pub/index.php(30): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http\Interceptor)) #21 {main} thrown in /home/magento/htdocs/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php on line 26