Reassembling the files using `urn:oic` parts

I accidentally destroyed the database of my NC instance hosted on Fly, but I have the files because I used S3 bucket to host them. And there are lots of urn:oic:xxxx files when I looked into it. Is it possible to reassemble all the files and directories in any way? I have lots of important files in there, please someone help me recover them.

:fist_right::fist_left: Anyone?

:fist_right::fist_left: Nobody knows it?