Dangerous Moodles - Cold and Flu Error

LOG  : General     , 1639528848274> -----------------------------------------
STACK TRACE
-----------------------------------------
function: DURGAM_flu -- file: DURGAM_DangerMoodles_ColdAndFlu.lua line # 39
function: doesPlayerHaveColdNEW -- file: DURGAM_DangerMoodles.lua line # 506

ERROR: General     , 1639528848275> ExceptionLogger.logException> Exception thrown java.lang.RuntimeException: attempted index: getBodyDamage of non-table: null at KahluaThread.tableget line:1689.
ERROR: General     , 1639528848275> DebugLogStream.printException> Stack trace:
java.lang.RuntimeException: attempted index: getBodyDamage of non-table: null
    at se.krka.kahlua.vm.KahluaThread.tableget(KahluaThread.java:1689)
    at se.krka.kahlua.vm.KahluaThread.luaMainloop(KahluaThread.java:641)
    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:61)
    at zombie.GameTime.update(GameTime.java:663)
    at zombie.gameStates.IngameState.UpdateStuff(IngameState.java:560)
    at zombie.gameStates.IngameState.updateInternal(IngameState.java:1672)
    at zombie.gameStates.IngameState.update(IngameState.java:1367)
    at zombie.gameStates.GameStateMachine.update(GameStateMachine.java:101)
    at zombie.GameWindow.logic(GameWindow.java:290)
    at zombie.core.profiling.AbstractPerformanceProfileProbe.invokeAndMeasure(AbstractPerformanceProfileProbe.java:71)
    at zombie.GameWindow.frameStep(GameWindow.java:746)
    at zombie.GameWindow.run_ez(GameWindow.java:662)
    at zombie.GameWindow.mainThread(GameWindow.java:476)
    at java.base/java.lang.Thread.run(Unknown Source)
LOG  : General     , 1639528848276> -----------------------------------------
STACK TRACE
-----------------------------------------
function: DURGAM_flu -- file: DURGAM_DangerMoodles_ColdAndFlu.lua line # 39
function: doesPlayerHaveColdNEW -- file: DURGAM_DangerMoodles.lua line # 506