All my download links are now dead

[Neuro]

Very suddenly after the last upgrade all my community downloads (i.e. via the Downloads app) are dead. Upon clicking "Download File", I get a white screen simply saying:

 

{
  "code": "not_found",
  "message": "File with such name does not exist.",
  "status": 404
}

 

Nothing has changed here - all the files are hosting on Amazon S3 bucket but I'm wracking my brains as to why suddenly they're all broken?

Any help appreciated! My webhost is Invision Cloud (here).

Thank you in advance for any help.

Neuro

Edited 2 hours ago by Neuro