Spectator mod crash


I’ve just installed SML and the Spectator mod for SML.
When I attempt to load into my world, this is what I get in the console:

[SML] Initializing Paks!
[SML] test
[SML] test
[SML] test
LogStreaming: Error: Couldn’t find file for package /Game/FactoryGame/SpectatorMod-1 requested by async loading code. NameToLoad: /Game/FactoryGame/SpectatorMod-1
LogStreaming: Error: Found 0 dependent packages…
LogWindows: Warning: CreateProc failed: The system cannot find the file specified. (0x00000002)

What am I doing wrong?