Get a large amount of errors when starting a new game with this enabled;

ERROR: General , 1633298592038> ExceptionLogger.logException> Exception thrown java.lang.reflect.InvocationTargetException at NativeMethodAccessorImpl.invoke0 (Native Method).
ERROR: General , 1633298592038> DebugLogStream.printException> Stack trace:
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at se.krka.kahlua.integration.expose.caller.MethodCaller.call(MethodCaller.java:62)
at se.krka.kahlua.integration.expose.LuaJavaInvoker.call(LuaJavaInvoker.java:198)
at se.krka.kahlua.integration.expose.LuaJavaInvoker.call(LuaJavaInvoker.java:188)
at se.krka.kahlua.vm.KahluaThread.callJava(KahluaThread.java:182)
at se.krka.kahlua.vm.KahluaThread.luaMainloop(KahluaThread.java:1007)
at se.krka.kahlua.vm.KahluaThread.call(KahluaThread.java:163)
at se.krka.kahlua.vm.KahluaThread.pcall(KahluaThread.java:1980)
at se.krka.kahlua.vm.KahluaThread.pcallvoid(KahluaThread.java:1812)
at se.krka.kahlua.integration.LuaCaller.pcallvoid(LuaCaller.java:66)
at se.krka.kahlua.integration.LuaCaller.protectedCallVoid(LuaCaller.java:139)
at zombie.Lua.Event.trigger(Event.java:64)
at zombie.Lua.LuaEventManager.triggerEvent(LuaEventManager.java:130)
at zombie.gameStates.GameLoadingState.exit(GameLoadingState.java:385)
at zombie.gameStates.GameStateMachine.update(GameStateMachine.java:105)
at zombie.GameWindow.logic(GameWindow.java:285)
at zombie.core.profiling.AbstractPerformanceProfileProbe.invokeAndMeasure(AbstractPerformanceProfileProbe.java:71)
at zombie.GameWindow.frameStep(GameWindow.java:726)
at zombie.GameWindow.run_ez(GameWindow.java:642)
at zombie.GameWindow.mainThread(GameWindow.java:471)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException: Cannot invoke "String.contains(java.lang.CharSequence)" because "this.resultItem" is null
at zombie.scripting.objects.EvolvedRecipe.getResultItem(EvolvedRecipe.java:486)
at zombie.inventory.RecipeManager.getEvolvedRecipe(RecipeManager.java:1475)
... 24 more