Laravel Spark registration view not loading after fresh installation

After a fresh install, with no errors, the app won't load the registration page. It loads the login and homepages as expected, but for some reason not the registration page. I've asked the question on SOF, here is the link:

https://stackoverflow.com/questions/65986883/laravel-spark-registration-view-not-loading-after-fresh-installation

I emailed spark support a couple of days ago but no answer yet. Hoping someone here can help :)

Thanks!!