Thread:Project:Support desk/Problems updating images (2)/reply (7)

I would recommend talking to your host. Their configuration prevents uploads via PHP because upload_tmp_dir is not in the open_basedir path. Ask them to change it to make it work. If they don't, you won't be able to enable uploads on your wiki.

While you could upload files via FTP, it won't help you get the files into your wiki. And if you want users to be able upload files too, you'd have to configure your FTP server appropriately. If your host even allows that.