Fatal error: Uncaught InvalidArgumentException: Constant "Magento\Backend\Setup\ConfigOptionsList::CONFIG_PATH_BACKEND_FRONTNAME" is not defined. in /home/pcdaviyx/public_html/lib/internal/Magento/Framework/Data/Argument/Interpreter/Constant.php:26 Stack trace: #0 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/App/Arguments/ArgumentInterpreter.php(35): Magento\Framework\Data\Argument\Interpreter\Constant->evaluate(Array) #1 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/Data/Argument/Interpreter/Composite.php(61): Magento\Framework\App\Arguments\ArgumentInterpreter->evaluate(Array) #2 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/ObjectManager/Config/Mapper/Dom.php(101): Magento\Framework\Data\Argument\Interpreter\Composite->evaluate(Array) #3 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/Config/Reader/Filesystem.php(194): Magento\Framework\ObjectManager\Config\Mapper\Dom->convert(Object(DOMDocument)) #4 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/Config/Reader/Filesystem.php(131): Magento\Framework\Config\Reader\Filesystem->_readFiles(Object(Magento\Framework\Config\FileIterator)) #5 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/App/ObjectManagerFactory.php(279): Magento\Framework\Config\Reader\Filesystem->read('primary') #6 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/App/ObjectManagerFactory.php(140): Magento\Framework\App\ObjectManagerFactory->_loadPrimaryConfig(Object(Magento\Framework\App\Filesystem\DirectoryList), Object(Magento\Framework\Filesystem\DriverPool), Object(Magento\Framework\ObjectManager\Config\Mapper\Dom), 'production') #7 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/App/Bootstrap.php(212): Magento\Framework\App\ObjectManagerFactory->create(Array) #8 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/App/Bootstrap.php(127): Magento\Framework\App\Bootstrap->__construct(Object(Magento\Framework\App\ObjectManagerFactory), '/home/pcdaviyx/...', Array) #9 /home/pcdaviyx/public_html/pub/index.php(23): Magento\Framework\App\Bootstrap::create('/home/pcdaviyx/...', Array) #10 {main} Next Magento\Framework\Exception\State\InitException: Constant "Magento\Backend\Setup\ConfigOptionsList::CONFIG_PATH_BACKEND_FRONTNAME" is not defined. in /home/pcdaviyx/public_html/lib/internal/Magento/Framework/App/ObjectManagerFactory.php:281 Stack trace: #0 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/App/ObjectManagerFactory.php(140): Magento\Framework\App\ObjectManagerFactory->_loadPrimaryConfig(Object(Magento\Framework\App\Filesystem\DirectoryList), Object(Magento\Framework\Filesystem\DriverPool), Object(Magento\Framework\ObjectManager\Config\Mapper\Dom), 'production') #1 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/App/Bootstrap.php(212): Magento\Framework\App\ObjectManagerFactory->create(Array) #2 /home/pcdaviyx/public_html/lib/internal/Magento/Framework/App/Bootstrap.php(127): Magento\Framework\App\Bootstrap->__construct(Object(Magento\Framework\App\ObjectManagerFactory), '/home/pcdaviyx/...', Array) #3 /home/pcdaviyx/public_html/pub/index.php(23): Magento\Framework\App\Bootstrap::create('/home/pcdaviyx/...', Array) #4 {main} thrown in /home/pcdaviyx/public_html/lib/internal/Magento/Framework/App/ObjectManagerFactory.php on line 281