Throws exception when starting on a server.

[DogInSpaace]

Expected Behaviour
Fabric server does should start without exception with this mod.

Actual Behaviour
The server throws an exception instead of starting.

Reproduction Steps

1. Download fabric-server
2. Add Fabric-API.jar and Mod-Updater.jar to the mods folder
3. Start the server

Crash Report
https://mclo.gs/pZzBTT7

Environment
Included in log.

Additional
I can do further testing or provide further information if needed. I tried running this with only the Fabric API and Updater installed.

[SolDev69]

Can confirm on Ubuntu 20.04, really a pain as I would love to use this on my server to auto update mods as I can't use PolyMC serverside.

[jonafanho]

Thanks, will look into it.

[Salmonings]

Hey! I have the same problem on my server. @jonafanho pls fix this
latest.log