I accidentally reset the world but the old world files are still there. How do I download the old server's map?

[Autumn_TS]

TLDR: I accidentally reset the world but the old world files are still there. How do I download the old server's map?
Hey first time forum writer here! I wanted to download our world file ("Za Warudo") so I typed "/dl world." It told me to put the world's name after that so I then typed "/dl world Za Warudo." The server then said that the world file doesn't exist.  I originally thought that it was due to it having a space so I changed the world name to "Za_Warudo" and it said that I needed to restart the server in order for the world name to change. So I restarted the server and the previous map and data are all reset. I immediately checked the file manager and noticed the files of the old world were still there. Afterwards, I checked if there was a backup and noticed that I could restore the server to it's last save which was an hour ago. I restored it but nothing changed. Is there anything I could do to fix this? Thanks!