it crash the game,I debug for a long time to find it


ERROR: General , 1647522181427> ExceptionLogger.logException> Exception thrown java.lang.NullPointerException: Cannot invoke "java.util.ArrayList.contains(Object)" because the return value of "java.util.HashMap.get(Object)" is null at BloodClothingType.addBlood line:510.
ERROR: General , 1647522181427> DebugLogStream.printException> Stack trace:
java.lang.NullPointerException: Cannot invoke "java.util.ArrayList.contains(Object)" because the return value of "java.util.HashMap.get(Object)" is null
at zombie.characterTextures.BloodClothingType.addBlood(BloodClothingType.java:510)
at zombie.characterTextures.BloodClothingType.addBlood(BloodClothingType.java:273)
at zombie.characters.IsoGameCharacter.addBlood(IsoGameCharacter.java:14031)
at zombie.characters.IsoZombie.addRandomBloodDirtHolesEtc(IsoZombie.java:3949)
at zombie.PersistentOutfits.applyOutfit(PersistentOutfits.java:350)
at zombie.PersistentOutfits.ApplyOutfit(PersistentOutfits.java:326)
at zombie.PersistentOutfits.dressInOutfit(PersistentOutfits.java:433)
at zombie.characters.IsoZombie.dressInPersistentOutfitID(IsoZombie.java:4116)
at zombie.characters.IsoGameCharacter.dressInPersistentOutfit(IsoGameCharacter.java:1412)
at zombie.characters.ZombiesZoneDefinition.dressInRandomOutfit(ZombiesZoneDefinition.java:184)
at zombie.characters.IsoZombie.dressInRandomOutfit(IsoZombie.java:4068)
at zombie.iso.IsoChunk.AddCorpses(IsoChunk.java:268)
at zombie.iso.IsoChunk.doLoadGridsquare(IsoChunk.java:3021)
at zombie.iso.IsoChunkMap.processAllLoadGridSquare(IsoChunkMap.java:153)
at zombie.gameStates.IngameState.enter(IngameState.java:705)
at zombie.gameStates.GameStateMachine.update(GameStateMachine.java:145)
at zombie.GameWindow.logic(GameWindow.java:289)
at zombie.core.profiling.AbstractPerformanceProfileProbe.invokeAndMeasure(AbstractPerformanceProfileProbe.java:71)
at zombie.GameWindow.frameStep(GameWindow.java:745)
at zombie.GameWindow.run_ez(GameWindow.java:661)
at zombie.GameWindow.mainThread(GameWindow.java:475)
at java.base/java.lang.Thread.run(Unknown Source)