Images do not display

I recently migrated my WordPress content from an offline installation to an online one at https://grinnell.lib.ia.us/CMS, and all seems to be working properly – except for previous additions to the uploads folder.

I’ve tried filling in the full URL path and store uploads settings, to no avail, though a new upload seems to function properly. The URL for said upload (https://grinnell.lib.ia.us/CMS/CMS/wp-content/uploads/Grinnell-200×300.jpg) is pretty weird, though, duplicating a subfolder.

Any idea what’s going on here?

[No bumping, please.]