I've noticed that since the downtime my addon domains no longer work. The site folder and content is still in the public_html but going to the addon domain just shows a blank page with the title of 'This site is under devolopment'. Deleting and re-adding the domain in cPanel hasn't fixed the issue. I will make a ticket in a while.
It might be worth the OP and others checking if their add-on domains work if they're on Vodoo.