New user register page controller not working

Developing with Concrete
1

I’ve just turned on new user registration on a site I’m setting up.
Tried running through the sign-up, but when I hit submit I get the following error;

/public_html/concrete/controllers/single_page/register.php

                    if ($config->get('concrete.email.register_notification.address')) {
                        if (Config::get('concrete.email.register_notification.name')) {
                            $fromName = Config::get('concrete.email.register_notification.name');
                        } else {
                            $fromName = t('Website Registration Notification');
                        }
                        $mh->from(Config::get('concrete.email.register_notification.address'), $fromName);
                    }

"Class "Concrete\Controller\SinglePage\Config" not found"

Anyone able to point me in the right direction for fixing this? Would’ve thought it should work right out of the box; I haven’t changed the login/register pages at all.

2

This error doesn’t occur unless the email settings are checked in the account registration settings; no verification/no admin email = no problem.

I’ve tried the 9.2 update as the bug fixes there include ‘Fixed error registering users with email validation under PHP 8.’, but that hasn’t fixed this error.

3

In case anyone stumbles across this with the same issue, it’s been addressed here;