WPMU DEV Dashboard page not visible on website

Hi, my new client has several WPMU DEV plugins installed on the site (Dashboard, Smush Pro and Hummingbird). However Smush Pro and Hummingbird are showing Auto-update not possible on the Updates screen. The Dashboard page (example.com/wp-admin/admin.php?page=wpmudev) is also not visible.

What's causing this and how can I fix it? I want to update Hummingbird and Smush Pro. Thanks