260.089 Error MainLoop.cpp:1468: Exception at tick 79513876: The mod More Enemies (0.7.3) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event more-enemies::on_entity_died (ID 4)
more-enemies/scripts/service/spawn-service.lua:163: attempt to index field 'entity' (a nil value)
stack traceback:
more-enemies/scripts/service/spawn-service.lua:163: in function 'on_entity_died'
more-enemies/scripts/controller/spawn-controller.lua:119: in function 'func'
TheEckelmonster-core-library/scripts/event-handler.lua:73: in function 'process_event'
TheEckelmonster-core-library/scripts/event-handler.lua:90: in function <TheEckelmonster-core-library/scripts/event-handler.lua:84>

Hello! Apologies for the error, but thanks for the report.

I see where the error is occurring and believe I should be able to put a fix in place.

This said, I did not encounter this in my testing, so I am unsure how to recreate issue precisely. If you're willing, do you mind sharing some additional context about the error?

Either way, hope to have a fix out as soon as I reasonably can.

it happens after some time in the game. not right at the start.

Modlist: (maybe u see something that can cause it)
base
elevated-rails
quality
space-age
aai-industry
accumulator-wagon-reborn
AdditionalPasteSettings
advanced-centrifuge
AdvancedBeltsSA-VL
alternative-beacons
Arachnids_enemy
ArmouredBiters
AsphaltRoadsPatched
atan-nuclear-science
augmentor-fork
AutoDeconstruct
automatic-discharge-defense
automatic-underground-pipe-connectors
AutoSwitchTechs
barreling-group2
basic-artillery
BatteryElectricTrain
behemoth-enemies
beltcounter2
Belt_Glow
Better_Starmap_Background
Big-Monsters
Bio_Industries_2
biter-factions-ng
BiterShield2
blinking-ghosts
Bluetonium
BluetoniumFusion
bobinserters
boblibrary
bobmodules
bot-Resistance-Modifier
BottleneckLite
btqbuslodtswfowap
bullet-trails
canal-excavator
canal-excavator-graphics
cargo-wagon-mk2
cheevos_base
cheevos_spage
chest-auto-sort
ChunkyChunks
CleanFloor
Cold_biters
combat-mechanics-overhaul
condensing-agricultural-tower
configurable-valves
Cosmic-Social-Distancing
craft-under-mouse
Custom-Production-UI-Fixed
data-utils
disco-science-lite
distant-misfires
diurnal-dynamics
dqol-resource-monitor
DragonIndustries
Electric_flying_enemies
electric_pole_free_light
energy-combinator
EpicArtillerySounds
est-tiny-storage-tank
ets-queue-to-front
even-pickier-dollies
EvenDistributionLite
Evolution
exfret_mechanical_inserter
Explosive_biters
extents-begone
extinguisher
Fill4Me
fire-lights
flamethrower-wagon
Flare
flib
floating-damage-text
Flow
Fluid-level-indicator
FluidMustFlow
FluidWagonColorMask
folk-stopthat
fulgora-extended
fusion-thruster
gas-boiler
Geothermal
Geothermals
GlowingLaserBeams
Gun_Turret_Alerts
hd_planets
heat-furnace
heavy_gun_turret
HeroTurretRedux
Honk
InductionChargingRevamp
inserter-throughput
inventory-repair
janus
k2-fluid-storage
kry_stdlib
lane-splitters
light-overhaul
lightning-collector-equipment
loaders-modernized
logistics-insights
mferrari_graphics_pack_1
mferrari_lib
Milestones
mining-patch-planner
modular-beacon-power
modular-trains
modular-trains-sa-graphics
module-calibrator
ModulesUI
More_Ammo
multi-mine-x10
NapalmArtillery
Nearby-Ammo-Count
nicefill-scriptfix
nixie-tubes
no--inventory-is-full--corpse-pickup-troubles
no-minimap-on-platforms
Noxys_QuickerStumpFade
Noxys_Trees
OrphanFinderFixed
PlanetsLib
PlanetsLibTiers
plated_floor
pollution-smoke
pollution-solutions-space-age-refresh
PollutionCombinator-JamieFork
PollutionSolutions2
pollution_from_fluids
PowerSats
pump
RampantArsenalFork
RampantEvolutionFixed
RateCalculator
RealisticFusionPowerPort
Redrawn-Space-Connections
Repair_Turret
Robot_Battery_Research2
Rocket-Silo-Construction
sa-repair-turret
SchallPickupTower
science-pack-glow-reborn
shelter-k2
shield-projector
show-max-underground-distance
smart-enemy-ai
sniper-rifle-improved
space-platform-graveyard
SpidertronEnhancements
SpidertronPatrols
StatsGui
StatsGui-HandcraftTimer
Tapeline
tbx-equipment-grid-wagons
teleporting_machine
teleport_require_timescience
Telogistics
tesla-turret-red-alert-sounds
Tiered-Solar-System
toxicresistance
Toxic_biters
train-speed-limits
trainsaver
TrainSpeeds
tree_collision
turbinesplusplusfixed
turret-activation-delay
Turret-Shields
ultimateCore
Updated_Construction_Drones
uranium_geiger
UtilizationMonitorBlargh
valves
valves-lib
VehicleSnap
visible-planets
visible-pollutants
vtk-deep-core-mining
Wagon-quality-size
Warehousing
water-pumpjack
Wind-Turbines-relaunched
WireReIcon
wood-stack-to-1k

Appreciate you sharing your modlist! Will certainly help narrow down what's causing the issue and help me develop a true fix; that said, I'm fairly confident I've identified what's causing the specific error, or at least how to prevent it going forward (essentially fixing a typo/backwards logic).

There is one local fix i did:
https://mods.factorio.com/mod/PollutionSolutions2/discussion/6a0342bbb8498a7ebcda6860 (bug report)

This might be important for this, since it effect the on_entity_died. Without this asteroids "deaths" caused ups drop for me.

Very nice! That's a great idea, will certainly include that - much appreciated!

No guarantee, but I'm hopeful to have a fix ready and available as soon as today - barring no unforeseen issues while testing, that is.

Just figured out which mod was causing the bug in my code to surface: biter-factions-ng.

Working to confirm if my intended fix is valid.
Confirmed it works locally. Fix/update should be available shortly.

With the release of version 0.7.4, this issue should be fixed.

Do let me know if you have any encounter any other issues, or have any questions.

Thanks again for the report!

Looks great. Played for 1h without any problems. Thanks a lot!!!