So, this has been going for a while now. I run an ScrN server, but these crashes are not unique to it and have been happening on vanilla as well.

I have no idea what triggers them. You could be on wave 1 and have the server crash on you while killing a clot, or have it crash mid-trader time on wave 10. It makes no sense and has no real sense of continuity. I tried to lower the amount of ZEDs from 48 to 32, and it seemed to alleviate the crashes... at first. Now, it crashes whenever it feels like.

Here are some logs from the time it has crashed:

#1

Warning: ZombieClotOS KF-TheLongDarkRoad.ZombieClotOS (Function KFOldSchoolZeds.KFMonsterOS.TakeDamage:02FC) Accessed None 'LastDamagedBy'
GT: Player [URY] Mortimer @ 2533.10,-3191.28,2171.30 can see ZombieVolume155.SpawnPos[0] @ 1740.32,-3048.39,2182.00
GT: Player [URY] Mortimer @ 2533.10,-3191.28,2171.30 can see ZombieVolume155.SpawnPos[1] @ 1740.32,-2992.39,2182.00
GT: 3:16 ZombieVolume155 zed spawn: ZombieClotOS ZombieClotOS ZombieGorefastOS ZombieGorefastOS
GT: 3:18 ZombieVolume38 zed spawn: ZombieRangedPoundOS
GT: 3:20 ZombieVolume159 zed spawn: ZombieCrawlerOS ZombieCrawlerOS ZombieCrawlerOS ZombieCrawlerOS
GT: 3:22 ZombieVolume156 zed spawn: ZombieClotOS ZombieClotOS ZombieClotOS ZombieGorefastOS
GT: 3:25 ZombieVolume59 zed spawn: ZombieBloatOS
Warning: KillsRules KF-TheLongDarkRoad.KillsRules (Function MutKillMessage.KillsRules.ScoreKill:0020) Accessed None 'Killer'
GT: 3:29 ZombieVolume155 zed spawn: ZombieClotOS ZombieClotOS ZombieClotOS ZombieClotOS ZombieBloatOS
Critical: AActor::ProcessState
Critical: Object KFMonsterControllerOS KF-TheLongDarkRoad.KFMonsterControllerOS, Old State State KFMod.KFMonsterController.ZombieHunt, New State State KFMod.KFMonsterController.ZombieHunt
Critical: AController::Tick
Critical: TickAllActors
Critical: ULevel::Tick
Critical: (NetMode=1)
Critical: TickLevel
Critical: UGameEngine::Tick
Critical: Level The Long Dark Road
Critical: UpdateWorld
Critical: UServerCommandlet::Main
Exit: Executing UObject::StaticShutdownAfterError
Exit: Exiting.

#2 (Server crashed during map transition, something that ONLY happens using this mod)

ScrnBalance: ******************** SERVER TRAVEL ********************
ScrnBalance: New Map: KF-TheLongDarkRoad
ScrnBalance: Options: ?Game=ScrnBalanceSrv.GT?Mutator=None?GameLength=105
ScriptLog: ProcessServerTravel: KF-TheLongDarkRoad?Game=ScrnBalanceSrv.GT?Mutator=None?GameLength=105
ScriptLog: PreClientTravel
Log: Server switch level: KF-TheLongDarkRoad?Game=ScrnBalanceSrv.GT?Mutator=None?GameLength=105
Log: Browse: KF-TheLongDarkRoad?Name=KFPlayer?Class=Engine.Pawn?Character=Corporal_Lewis?team=1?Sex=M?Game=ScrnBalanceSrv.GT?GameLength=105?VACSecured=true?MaxPlayers=6?Port=7707?Mutator=None
NetComeGo: Close TcpipConnection 46.193.3.70:63746 09/14/22 14:58:23
Exit: Socket shut down
Log: Collecting garbage
Log: Purging garbage
Log: (Karma): Level Karma Terminated.
Critical: Unhashed name 'KarmaP`ramsSkel32'
Exit: Executing UObject::StaticShutdownAfterError
Critical: FName::DeleteEntry
Critical: Names
Critical: UObject::PurgeGarbage
Critical: UObject::CollectGarbage
Critical: Cleanup
Critical: UGameEngine::LoadMap
Critical: LocalMapURL
Critical: UGameEngine::Browse
Critical: ServerTravel
Critical: UGameEngine::Tick
Critical: Level The Long Dark Road
Critical: UpdateWorld
Critical: UServerCommandlet::Main
Exit: Exiting.

#3

Critical: UObject::ProcessEvent
Critical: (ScrnMK23Fire KF-2005SewersV2.ScrnMK23Pistol.ScrnMK23Fire0, Function KFMod.KFFire.ModeDoFire)
Critical: UWeaponFire::ModeTick
Critical: AActor::Tick
Critical: ABaseKFWeapon::Tick
Critical: TickAllActors
Critical: ULevel::Tick
Critical: (NetMode=1)
Critical: TickLevel
Critical: UGameEngine::Tick
Critical: Level KF-Sewers 1.0
Critical: UpdateWorld
Critical: UServerCommandlet::Main
Exit: Executing UObject::StaticShutdownAfterError
Exit: Exiting.

#4

Warning: ScrnSinglePickup KF-2005SewersV2.ScrnSinglePickup (Function KFMod.KFWeaponPickup.Destroyed:0019) Accessed None 'Inventory'
Warning: ScrnAK47Pickup KF-2005SewersV2.ScrnAK47Pickup (Function KFMod.KFWeaponPickup.Destroyed:0019) Accessed None 'Inventory'
Log: STEAMAUTH : Sending updated server details - Matando Piso 2 | 6
GT: 8:31 ZombieVolume8 zed spawn: ZombieClotOS ZombieClotOS ZombieGorefastOS ZombieGorefastOS
GT: 8:35 ZombieVolume64 zed spawn: ZombieClotOS ZombieClotOS ZombieGorefastOS ZombieGorefastOS ZombieStalkerOS ZombieStalkerOS ZombieRangedPoundOS
GT: 8:39 ZombieVolume20 zed spawn: ZombieGorefastOS ZombieGorefastOS ZombieGorefastOS ZombieGorefastOS
Critical: ReplicateThem
Critical: UActorChannel::ReplicateActor
Critical: (Actor ScrnNailGunProjectile)
Critical: UpdateRelevant
Critical: ULevel::ServerTickClients
Critical: ULevel::TickNetServer
Critical: UpdateNetServer
Critical: ULevel::Tick
Critical: (NetMode=1)
Critical: TickLevel
Critical: UGameEngine::Tick
Critical: Level KF-Sewers 1.0
Critical: UpdateWorld
Critical: UServerCommandlet::Main
Exit: Executing UObject::StaticShutdownAfterError
Exit: Exiting.

#5

GT: 17:53 ZombieVolume68 zed spawn: ZombieGorefastOS ZombieGorefastOS ZombieSirenOS ZombieSirenOS
GT: 17:57 ZombieVolume64 zed spawn: ZombieClotOS ZombieGorefastOS ZombieGorefastOS ZombieGorefastOS
Critical: UObject::ProcessEvent
Critical: (ScrnKrissMFire KF-2005SewersV2.ScrnKrissMMedicGun.ScrnKrissMFire0, Function KFMod.KFHighROFFire.ModeDoFire)
Critical: UWeaponFire::ModeTick
Critical: AActor::Tick
Critical: ABaseKFWeapon::Tick
Critical: TickAllActors
Critical: ULevel::Tick
Critical: (NetMode=1)
Critical: TickLevel
Critical: UGameEngine::Tick
Critical: Level KF-Sewers 1.0
Critical: UpdateWorld
Critical: UServerCommandlet::Main
Exit: Executing UObject::StaticShutdownAfterError
Exit: Exiting.

#6 (Crash during mapvote/map transition, again)

Exit: Socket shut down
Log: Collecting garbage
Log: Purging garbage
Log: (Karma): Level Karma Terminated.
Critical: Unhashed name 'KarmaP`ramsSkel9689'
Exit: Executing UObject::StaticShutdownAfterError
Critical: FName::DeleteEntry
Critical: Names
Critical: UObject::PurgeGarbage
Critical: UObject::CollectGarbage
Critical: Cleanup
Critical: UGameEngine::LoadMap
Critical: LocalMapURL
Critical: UGameEngine::Browse
Critical: ServerTravel
Critical: UGameEngine::Tick
Critical: Level KF-Hell
Critical: UpdateWorld
Critical: UServerCommandlet::Main
Exit: Exiting.

I have many other logs. It's getting extremely frustrating now given I have tried EVERY SINGLE THING and it keeps crashing.