error message on form

[bmorrow]

I know this question's been asked and I tried to remove the code on the page but I still get the error, even though the form works and sends me the info.

Warning: Cannot modify header information - headers already sent by (output started at /home/rwehzszz/public_html/buying.php:1) in /home/rwehzszz/public_html/buying.php on line 98

The site page is: www.Hamiltonhomereview.com/buying.php