Warning: include(/home/healthba/public_html/var/view_preprocessed/pub/static/vendor/magento/module-theme/view/base/templates/root.phtml): failed to open stream: No such file or directory in /home/healthba/public_html/vendor/magento/framework/View/Result/Page.php on line 326
var folder content by below command,
rm -rf var/generation/ var/view_preprocessed/ pub/static/frontend/ pub/static/_requirejs/ var/cache var/di var/page_cache pub/static/_cache
Now, give full permission to the
sudo chmod -R 0777 var/
If the above method is not working then check your file and folder permissions, You need to give permissions to your Magento 2 instance. Check Magento Docs for file permissions
Hope it helps.