Product data dropdown box disappeared

Hello,

I used to have the dropdown box next to Product Data when adding a new product however now that dropdown box has dissapered hence it is not letting me to add a new ‘variable product’ which has different variations ?! Kindly assist in fixing this issue.

I have recently changed my hosting as I was previously on my web developers server and now I got my own server. However, both were with GoDaddy and the only difference is that when I got my own server its managed wordpress (thought of mentioning this; not sure if related to the issue).

The page I need help with: [log in to see the link]