So I've been looking around for an external login function for quite a while. I found this http://www.oxwall.org/forum/topic/8727. I attempted to use the functions produced in there but keep receiving this error

"Fatal error: Call to a member function isAuthenticated() on a non-object in /home/kingkept/public_html/ow_core/auth.php on line 114"

I narrow it down to being this function
"$result = OW::getUser()->authenticate($adapter, true);"

Was just wondering if anyone had any as to how to fix this :)