Fatal error: Uncaught Error: Class "Monolog\DateTimeImmutable" not found in /app/vendor/monolog/monolog/src/Monolog/Logger.php:382 Stack trace: #0 /app/vendor/monolog/monolog/src/Monolog/Logger.php(663): Monolog\Logger->addRecord(500, 'Error: Class "A...', Array) #1 /app/vendor/magento/framework/Logger/LoggerProxy.php(121): Monolog\Logger->critical(Object(Error), Array) #2 /app/vendor/magento/framework/App/Bootstrap.php(445): Magento\Framework\Logger\LoggerProxy->critical(Object(Error)) #3 /app/vendor/magento/framework/App/Bootstrap.php(275): Magento\Framework\App\Bootstrap->terminate(Object(Error)) #4 /app/pub/index.php(30): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http\Interceptor)) #5 {main} thrown in /app/vendor/monolog/monolog/src/Monolog/Logger.php on line 382