Exception: Deprecated Functionality: DateTime::__construct(): Passing null to parameter #1 ($datetime) of type string is deprecated in /var/www/html/vendor/monolog/monolog/src/Monolog/Logger.php on line 324 in /var/www/html/vendor/magento/framework/App/ErrorHandler.php:61 Stack trace: #0 [internal function]: Magento\Framework\App\ErrorHandler->handler(8192, 'DateTime::__con...', '/var/www/html/v...', 324) #1 /var/www/html/vendor/monolog/monolog/src/Monolog/Logger.php(324): DateTime->__construct(NULL, Object(DateTimeZone)) #2 /var/www/html/vendor/magento/framework/Logger/Monolog.php(48): Monolog\Logger->addRecord(400, 'Deprecated Func...', Array) #3 /var/www/html/vendor/monolog/monolog/src/Monolog/Logger.php(712): Magento\Framework\Logger\Monolog->addRecord(400, 'Deprecated Func...', Array) #4 /var/www/html/vendor/magento/framework/App/Bootstrap.php(266): Monolog\Logger->error('Deprecated Func...') #5 /var/www/html/pub/index.php(104): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http)) #6 {main}