Blackied

Hi, I just installed nextcloud and mariadb as per SpaceInvader, and the docker is loading up and doing things mostly fine. The only problem (which is somewhat of a showstopper) is that for some reason I can't actually share any files in my account - the share button is literally missing. When you go to the properties of a file or folder it only has activity, comments, and versions tabs available and a missing spot for Sharing. I've checked the settings and it seems all set to enable. Tried creating a second user and it had the same problem. I'm guessing there's something that needs to be repaired but no idea where. Any thoughts?