doing some damage on the theme function, currently the site cannot be access,
will get the site up as i get access on the server console.
sorry for the troubles caused
since this is not resolved .. maybe you can try adjusting .htaccess file .. to enable the mod rewrite features if your host is apache.
btw this is what i found
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
and this is the result and i had no issues with the DNS resolv, since i do my own server
Downloading update from http://downloads.wp.xz.cn/plugin/contact-form-7.1.9.5.1.zip
Unpacking the update
Deactivating the plugin
Removing the old version of the plugin
Installing the latest version
Plugin upgraded successfully
Attempting reactivation of the plugin
good luck