Hi Jibran!
This is not directly connected to the current AudioJungle changes. Back in 2017 we changed the way that new author applications worked for photos, which had previously been via PhotoDune only.
We are still taking new author applications for photos, but those applications now goes via Elements. There’s some more information on that process in our Help Centre here, and you can apply to become an Elements author here: Become an Elements Author - Envato Author Hub