Error ID: 681507830
I have Zotero open, and when I try to use Word (Version 16.23), I always get the message: "Word could not communicate with Zotero. Please ensure that Zotero is open and try again." I've tried reinstalling the plug-in, deleting it manually and installing it again, not sure what else to do.
Have you tried restarting your computer?
(Obviously, if you find this happens regularly, let us know, but that's unlikely.)