PHP error in support forum

I know this is the wrong place, but I'm not able to find any other contact 
channel.

I tried creating a new forum user, it says I have to confirm my email; if I 
click the corresponding link, I get this error page

Fatal Error in PHPMailer.MailSend();
Could not instantiate mail function.
The error occurred on or near: 
/var/www/forum/library/vendors/phpmailer/class.phpmailer.php

684:     if (isset($old_from)) {

685:       ini_set('sendmail_from', $old_from);

686:     }

687:     if(!$rt) {

688:       throw new phpmailerException($this->Lang('instantiate'), 
self::STOP_CRITICAL);

689:     }

690:     return true;

691:   }

692: 

Backtrace:

[/var/www/forum/library/vendors/phpmailer/class.phpmailer.php:579] 
PHPMailer->MailSend();

[/var/www/forum/library/core/class.email.php:202] PHPMailer->Send();

[/var/www/forum/applications/dashboard/models/class.usermodel.php:2092] 
Gdn_Email->Send();

[/var/www/forum/applications/dashboard/controllers/class.entrycontroller.php:133
9] UserModel->SendEmailConfirmationEmail();

[/var/www/forum/applications/dashboard/controllers/class.entrycontroller.php:133
9] EntryController->EmailConfirmRequest();

[/var/www/forum/library/core/class.dispatcher.php:322] 
PHP::call_user_func_array();

[/var/www/forum/index.php:53] Gdn_Dispatcher->Dispatch();

Additional information for support personnel:

    Application: Vanilla
    Application Version: 2.0.18.8
    PHP Version: 5.3.10-1ubuntu3.8
    Operating System: Linux
    Server Software: Apache/2.2.22 (Ubuntu)
    Referer: http://www.transdroid.org/forum/index.php?p=/
    User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0
    Request Uri: /forum/index.php?p=/entry/emailconfirmrequest
    Controller: PHPMailer
    Method: MailSend

Can anybody fix it and send my activation email?
Original issue reported on code.google.com by Dario.Pi...@gmail.com on 5 Nov 2013 at 9:40
kylewooten / transdroid

PHP error in support forum #500
