This is the error the log is throwing
17.156 Applying migration: Useful Combinators: UsefulCombinators_0.0.2.lua
18.405 Error ServerMultiplayerManager.cpp:92: MultiplayerManager failed: "Error while applying migration: Useful Combinators: UsefulCombinators_0.0.2.lua
...efulCombinators__/migrations/UsefulCombinators_0.0.2.lua:6: attempt to index field 'random-combinator' (a nil value)
stack traceback:
...efulCombinators__/migrations/UsefulCombinators_0.0.2.lua:6: in main chunk"