Warning: include(/home/stage4/public_html/vendor/magento/framework/Exception/FileSystemException.php): failed to open stream: Too many open files in /home/stage4/public_html/vendor/composer/ClassLoader.php on line 444

Warning: include(): Failed opening '/home/stage4/public_html/vendor/composer/../magento/framework/Exception/FileSystemException.php' for inclusion (include_path='/home/stage4/public_html/generated/code:/home/stage4/public_html/generated/code:/home/stage4/public_html/vendor/magento/zendframework1/library:.:/usr/share/pear:/usr/share/php') in /home/stage4/public_html/vendor/composer/ClassLoader.php on line 444

Fatal error: Uncaught Error: Class 'Magento\Framework\Exception\FileSystemException' not found in /home/stage4/public_html/vendor/magento/framework/Filesystem/Driver/File.php:150 Stack trace: #0 /home/stage4/public_html/vendor/magento/framework/Filesystem/File/Read.php(103): Magento\Framework\Filesystem\Driver\File->fileGetContents() #1 /home/stage4/public_html/vendor/magento/framework/Config/FileIterator.php(71): Magento\Framework\Filesystem\File\Read->readAll() #2 /home/stage4/public_html/vendor/magento/framework/Config/Reader/Filesystem.php(148): Magento\Framework\Config\FileIterator->current() #3 /home/stage4/public_html/vendor/magento/framework/Config/Reader/Filesystem.php(132): Magento\Framework\Config\Reader\Filesystem->_readFiles() #4 /home/stage4/public_html/vendor/magento/framework/App/ObjectManagerFactory.php(279): Magento\Framework\Config\Reader\Filesystem->read() #5 /home/stage4/public_html/vendor/magento/framework/App/ObjectManagerFactory.php(140): Magento\Framework\App\ObjectManagerFactory->_loadPrimaryConf in /home/stage4/public_html/vendor/magento/framework/Filesystem/Driver/File.php on line 150