Hi OliviaConlon,
That's definitely not ideal when the file reckons it's still backing up even though it's clearly done. I had a quick look on my end, but you've got quite a few products showing under your account, so I'm not 100% sure which file's playing up. So the quickest way to get this sorted is to jump onto our live chat support through our virtual assistant, MOCA, or submit a case via My Account. The team there can check the exact file and run a script in the background to bump it out of that stuck back state.
Regards,
Sai