Adding this function does not work. It throw an debug error:

Warning: Cannot modify header information - headers already sent by (output started at /home/atax/www/www/mysite/code/HomePage.php:22) in /home/atax/www/www/sapphire/core/Debug.php on line 151
Error

The website server has not been able to respond to your request.

Also, doesn't moving subscribe form code to Page.php is problematic as it depends on UserDefinedForm with extends page.php ??

thanks for your response,
Rotem.

Error
The website server has not been able to respond to your request.

Is the generic error message. Put the site into Dev mode so you can see the actual error by adding

Director::set_environment_type("dev");

Sorry I didnt know you were trying to use a UserDefinedForm for the subscribe form, I figured it would have been hard coded.

attached the error log.

If i understand it right, it seem there is no SubscribeForm() method, I also tried call Form() with same results.
I looked at the "SubscribeForm.php" and there is a function Form() definition there.

thanks,
Rotem.

interested in this myself, as i'm running into a similar issue

any idea ?

thanks,
Rotem.

+1 looking for a solution here...