Theme menu stopped working (Doctype)

My ‘Doctype’ theme has been working great for quite a while now. Over a year or so. The menu however stopped working, in that the dropdown for submenu items doesn’t show.

Rolling over the menu highlights the parent items, but there are sub-items in each menu that lead to the actual content.

This is my portfolio site and is SUPER important that it works while I am looking for a job.

Are you seeing what I am seeing, or is it just me?

Have you tried reaching out to the theme author for support: