Error on startup?

[Quafadas]

I installed the smithy extension, and I seem to get syntax highlighting, which is promising.

However, LSP type features (go to definition etc) don't seem to be working. In the Log (Extension Host) of VSCode, I found this;

2022-11-09 11:25:30.956 [error] Error: spawn UNKNOWN
	at ChildProcess.spawn (node:internal/child_process:413:11)
	at Object.spawn (node:child_process:720:9)
	at Server.<anonymous> (c:\Users\partens\.vscode\extensions\smithy.smithy-vscode-extension-0.5.1\out\src\extension.js:1:29729)
	at Object.onceWrapper (node:events:645:28)
	at Server.emit (node:events:526:28)
	at emitListeningNT (node:net:1364:10)
	at process.processTicksAndRejections (node:internal/process/task_queues:82:21)

Which to my eye, hints a problem starting something (smithy LSP server perhaps?) Would this be the right place to report?

Is there any other information it might be helpful to provide?