The error message:

site.com/register/No%20OpenID%20Server%20found%20at%20https:/me.yahoo.com/0

The error URL says it cannot find the OPEN ID Server

Looked online by No OpenID Server found

I found a similar situation with a solution your hosting can help try: http://stackoverflow.com/questions/13564011/no-ope…

Solution

Luckily, server admins were able to quickly discover the config difference in php configuration allow_url_fopen = 1 solved the issue

If they need even more send them this http://php.net/manual/en/filesystem.configuration….