I moved redirection domain phpbbdemo.com (that is used to redirect to different themes on this forum instead of typing style=XX).
It was hosted by enom and i used their redirection service. Now i moved it on this server and setup redirection scripts. This should eliminate problems with redirection.
And instead of old redirection handled by HTTP 302 error i changed it to HTTP/1.1 301 and that should fix error with search engines. Search engines listed subdomains of phpbbdemo.com and this was causing duplicate content. Now it should index only demo.phpbbstyles.com instead.
If anyone will have problems please contact me.