Products->Categories missing

Looking for help over the weekend since I don’t have access to my old login info for our Woocommerce store until I get back to work Monday.

I am trying to edit Product Categories. On the left hand nav bar, Categories is missing under Product. Additionally, in the edit product page, the categories in the right hand box are greyed out. This behavior apparently started awhile ago but no one did anything about it. Until now. Does anyone have an idea what might have caused this? The backend of the site in general right now is a cluster so I’m guessing might be caused by some of the plug-ins being wildly out of date (which unfortunately don’t have access right now to update). Thanks. Laurie