BuddyPress Group Documents Plugin– Documents List Disappeared

I know that this is potentially outside your areas-of-expertise/help, so I apologize in advance if I am wasting your time.. After editing the category of a previously uploaded document (under the Documents tab created by the BuddyPress Group Documents plugin) in one of my groups today, the document list for that group, including the drop-down list to sort categories, disappeared, and was replaced with the “no documents have been uploaded to this group” screen. However, I can still upload documents, and the documents are referred to in my activity stream — the “no documents have been uploaded to this group” screen still remains, though. The links to previously uploaded documents also still work. Also, all of my other groups are unaffected.

I tried reinstalling Group Documents, and nothing changed. This warning, however, appears on my dashboard in the Group Documents section (whether it has always been there, or is in any way related, I wish I knew): Warning: opendir(plugins/buddypress-group-documents/uploads/) [function.opendir]: failed to open dir: No such file or directory in /wp-content/plugins/buddypress-group-documents /include/admin-uploads.php on line 26.

I would appreciate any advice you have to offer! Happy 4th.