Not being able to use Custom Map in my rust server

So I recently set up my server and I'm really keen to get it working and to start using oxide. However I have made a custom made with Rust Edit and am unsatisfied when receiving this message in the log:

Scene 'C:\Steam\steamapps\common\Rust\maps\test.map' couldn't be loaded because it has not been added to the build settings or the AssetBundle has not been loaded.
To add a scene to the build settings use the menu File->Build Settings...

It then goes on to display some sort of null error where it simply does not allow me to connect to my own server. However I know this is not a map issue as my friends have been able to use it just fine. I would greatlly appreciate if someone could reach out to me and help.

+levelurl has to be a URL (clue is in the name), not a path.