Fabric derver crashing with hydraulic

[untold mulch]

Hello, so I wanted to make a modded minecraft server, but also have bedrock crossplay, so I stumbled across Hydraulic. When I try booting my server, it crashes on startup. What should I do? Here are the logs: https://paste.shockbyte.com/valafepejoqijovapide

[tiny flicker]

Found errors in the log!

See below for details and possible fixes

java.lang.NullPointerException: Cannot invoke "com.google.gson.JsonElement.getAsInt()" because the return value of "com.google.gson.JsonObject.get(String)" is null

Unknown fix!
Class: PackManager
Method: lambda$initialize$0
Line: 99
Link: Unknown

[brave mulch]

You have a mod with a pack_format that creative doesn't like.

You'll have to manually go through your mods to see which one is causing the issue.

Creative is a resource pack library GeyserMC uses in Hydraulic.

Not much else I can provide to fix this besides the information above.

If the issue is resolved, leave a message here to let us know.