Notice: Undefined index: HTTP_REFERER in /var/www/u0084852/data/www/xn----ctbbjbqcqlc7cr3c.xn--p1ai/socnetauth/facebook.php on line 21

Warning: Cannot modify header information - headers already sent by (output started at /var/www/u0084852/data/www/xn----ctbbjbqcqlc7cr3c.xn--p1ai/socnetauth/facebook.php:21) in /var/www/u0084852/data/www/xn----ctbbjbqcqlc7cr3c.xn--p1ai/socnetauth/facebook.php on line 32