I copied my website from localhost to server. For the first 3 days shop worked properly, but now there is an error.
http://demo2.ninethemes.net/fastor/magento2/
Please upgrade your database: Run "bin/magento setup:upgrade
" from the Magento root directory.
I did it and still, I am getting this error. On localhost, shop works properly. I don't know how to fix it.