Why does everything fail to download?

[cobalt compass]

I started making my own custom map for the first time using the Lonn editor. I booted up the game to test what I have so far (2 very basic rooms) but it says I have missing dependencies.

Spent like 10 minutes waiting for things to download, but almost every single download task gave an ‘error’. Downloading eventually stopped, and says the dependencies still need to be downloaded.
Anyone have a clue why this is happening?

(There are more errors that came before and after this image)

[unique igloo]

Did you try restarting the game? It seems like the download succeeded, and sometimes mods work better when loaded on startup