I'm having an issue when a new user submits an application:
Error: Call to a member function item() on null (0)
#0 [internal function]: IPS\Theme\email_html_applicationform_notification_submission(Object(IPS\applicationform\Position\Data), Object(IPS\Email\Outgoing\SendGrid))
#1 /home/cnmg09x66icu/public_html/ac3s.us/system/Email/Email.php(683): call_user_func_array('IPS\\Theme\\email...', Array)
#2 /home/cnmg09x66icu/public_html/ac3s.us/system/Email/Email.php(266): IPS\_Email::template('applicationform', 'notification_su...', 'html', Array)
#3 /home/cnmg09x66icu/public_html/ac3s.us/system/Email/Outgoing/SendGrid.php(145): IPS\_Email->compileContent('html', false, Object(IPS\Lang))
#4 /home/cnmg09x66icu/public_html/ac3s.us/system/Notification/Notification.php(507): IPS\Email\Outgoing\_SendGrid->mergeAndSend(Array, NULL, NULL, Array, Object(IPS\Lang))
#5 /home/cnmg09x66icu/public_html/ac3s.us/system/Notification/Notification.php(488): IPS\_Notification->sendEmails(Array, Array)
#6 /home/cnmg09x66icu/public_html/ac3s.us/applications/applicationform/sources/Helper/Notification.php(62): IPS\_Notification->send()
#7 /home/cnmg09x66icu/public_html/ac3s.us/applications/applicationform/sources/Position/Position.php(425): IPS\applicationform\Helper\_Notification::sendNotificationForSubmission(Object(IPS\applicationform\Position\Data))
#8 /home/cnmg09x66icu/public_html/ac3s.us/applications/applicationform/modules/front/applications/form.php(54): IPS\applicationform\_Position->handleForm(Array)
#9 /home/cnmg09x66icu/public_html/ac3s.us/applications/applicationform/modules/front/applications/form.php(29): IPS\applicationform\modules\front\applications\_form->_showForm()
#10 /home/cnmg09x66icu/public_html/ac3s.us/system/Dispatcher/Controller.php(96): IPS\applicationform\modules\front\applications\_form->manage()
#11 /home/cnmg09x66icu/public_html/ac3s.us/system/Dispatcher/Dispatcher.php(146): IPS\Dispatcher\_Controller->execute()
#12 /home/cnmg09x66icu/public_html/ac3s.us/index.php(13): IPS\_Dispatcher->run()
#13 {main}
Any ideas?