Hello Fluffy,
I've got this error:

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Mod Work Tab <packageId> (fluffy.worktab_copy) is not in valid format.
Verse.Log:Warning(String, Boolean)
Verse.ModMetaDataInternal:TryParsePackageId(Boolean, Boolean)
Verse.ModMetaData:Init()
Verse.ModMetaData:.ctor(String, Boolean)
Verse.ModLister:RebuildModList()
Verse.ModLister:.cctor()
Verse.ModsConfig:.cctor()
Verse.LoadedModManager:InitializeMods()
Verse.LoadedModManager:LoadAllActiveMods()
Verse.PlayDataLoader:DoPlayLoad()
Verse.PlayDataLoader:LoadAllPlayData(Boolean)
Verse.<>c:<Start>b__6_1()
Verse.LongEventHandler:RunEventFromAnotherThread(Action)
Verse.<>c:<UpdateCurrentAsynchronousEvent>b__27_0()
System.Threading.ThreadHelper:ThreadStart_Context(Object)
System.Threading.ExecutionContext:RunInternal(ExecutionContext, ContextCallback, Object, Boolean)
System.Threading.ExecutionContext:Run(ExecutionContext, ContextCallback, Object, Boolean)
System.Threading.ExecutionContext:Run(ExecutionContext, ContextCallback, Object)
System.Threading.ThreadHelper:ThreadStart()