getting this error File: /chroot/home/html/vendor/magento/framework/App/State.php Error: Area code is not set Line: 139 Stack trace: #0 /chroot/home/html/vendor/magento/module-theme/Model/View/Design.php(126): Magento\Framework\App\State->getAreaCode() #1 /chroot/home/html/var/generation/Magento/Theme/Model/View/Design/Proxy.php(103): Magento\Theme\Model\View\Design->getArea() #2 /chroot/home/html/vendor/magento/module-email/Model/AbstractTemplate.php(584): Magento\Theme\Model\View\Design\Proxy->getArea() #3 /chroot/home/html/vendor/magento/module-email/Model/AbstractTemplate.php(608): Magento\Email\Model\AbstractTemplate->getDesignConfig() #4 /chroot/home/html/vendor/magento/module-email/Model/Template.php(413): Magento\Email\Model\AbstractTemplate->setDesignConfig(Array) #5 /chroot/home/html/vendor/magento/framework/Mail/Template/TransportBuilder.php(257): Magento\Email\Model\Template->setOptions(Array) #6 /chroot/home/html/vendor/magento/framework/Mail/Template/TransportBuilder.php(267): Magento\Framework\Mail\Template\TransportBuilder->getTemplate() #7 /chroot/home/html/vendor/magento/framework/Mail/Template/TransportBuilder.php(227): Magento\Framework\Mail\Template\TransportBuilder->prepareMessage() #8 /chroot/home/html/vendor/magento/module-sales/Model/Order/Email/SenderBuilder.php(66): Magento\Framework\Mail\Template\TransportBuilder->getTransport() #9 /chroot/home/html/vendor/magento/module-sales/Model/Order/Email/NotifySender.php(34): Magento\Sales\Model\Order\Email\SenderBuilder->send() #10 /chroot/home/html/app/code/Bss/OrderDeliveryDate/Model/Plugin/Sales/Order/Email/Sender/OrderCommentSender.php(46): Magento\Sales\Model\Order\Email\NotifySender->checkAndSend(Object(Magento\Sales\Model\Order), true) #11 /chroot/home/html/pub/test.php(203): Bss\OrderDeliveryDate\Model\Plugin\Sales\Order\Email\Sender\OrderCommentSender->send(Object(Magento\Sales\Model\Order), true, ‘123456+SWOG’) #12Read more