Subdomain not work?!

[xstable]

I have enterd a subdomain:
neu.ggshardt.de to IP: 94.130.152.89

But If I enter this Domain, it complete the url to ggshardt.de/http//neu.ggshardt.de.
If I put neu.ggshardt.de in my /etc/hosts it works really well.

At the Page is only (an not still installed) wordpress-package. Maybe the redirect is the cause of some trouble?

[Riant]

Yes, the PAC_Script modal that this plugin used is different with /etc/hosts config, so for local Wordpress site, I do not know how to fix that.