@Rhonen get a server error:
23.11.2020 08:55:30 [Error] [starterpack] An exception was thrown when trying to start the mod:
System.MissingMethodException: Method not found: '!!0 SharedLibrary.ApiExtension.LoadOrCreateDataFile(Vintagestory.API.Common.ICoreAPI, System.String)'.
at starterpack.src.busineslogic.FileManager.LoadReceivedPlayers()
at starterpack.src.busineslogic.FileManager.init()
at starterpack.src.StarterPackMod.StartServerSide(ICoreServerAPI api)
at Vintagestory.Common.ModLoader.TryStartSystem(Mod mod, ModSystem system, ICoreAPI api, ModEventPhase phase)
23.11.2020 08:55:30 [Error] Failed to start system starterpack.src.StarterPackMod