The mod Heat-resistant Pipes (2.0.2) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event HotPipesFork::on_nth_tick(30)
invalid key to 'next'
stack traceback:
[C]: in function 'next'
HotPipesFork/scripts/scanner.lua:466: in function <HotPipesFork/scripts/scanner.lua:461>

Quite a long mod list:
"base"
"elevated-rails"
"quality"
"space-age"
"aai-vehicles-ironclad"
"Accumulator-V2"
"alien-biomes"
"alien-biomes-graphics"
"all-planets-pack-tweaks"
"ArmouredBiters"
"AsteroidBelt"
"autobuild"
"behemoth-enemies"
"BeltThreadUpgrades"
"Better-Planets"
"Better_Starmap_Background"
"BiolabsNeedNutrients"
"bioprocessing-tab"
"BiterShield2"
"blueprint-sandboxes"
"BlueprintTools"
"boompuff-agriculture"
"BottleneckLite"
"bplib"
"canal-excavator"
"canal-excavator-graphics"
"cargo-ships"
"cargo-ships-graphics"
"castra"
"celestial-weather"
"Cerys-Moon-of-Fulgora"
"CharacterModHelper"
"CharacterUtilities"
"Cloning-vat-building"
"Cold_biters"
"colorful_biochamber"
"common-prototypes"
"common-prototypes-graphics"
"condensing-agricultural-tower"
"corrundum"
"Cosmic-Social-Distancing"
"cubium"
"data-utils"
"dea-dia-system"
"DiscoScience"
"distant-misfires"
"diurnal-dynamics"
"dredgeworks"
"dredgeworks-graphics"
"dynamic-rain"
"Electric_flying_enemies"
"elevated-pipes"
"enhanced-shadows"
"est-tiny-storage-tank"
"Explosive_biters"
"fdsl"
"fire-lights"
"flamethrower-turret-balance"
"Flare Stack"
"flib"
"FluidMustFlow"
"FusionPoweredRobots"
"gear-girl"
"Gleba-Science-Needs-Nutrients"
"graveeaters-standard-selection"
"harder-pack"
"helmod"
"HighPrecisionManufacturing"
"HotPipesFork"
"Igrys"
"informatron"
"InserterFuelLeech"
"IRobot"
"Krastorio2Assets"
"kry-inserters"
"kry-planet-mods-lite"
"kry_stdlib"
"LandmineExplosionsDoHurt"
"leave_the_lights_on"
"lex-aircraft"
"Lighted-Poles-Plus"
"Long_Range_Delivery_Drones"
"long_stack_inserter"
"machine-upgrades"
"maraxsis"
"matter_printer"
"metal-and-stars"
"metal-and-stars-graphics"
"metal-and-stars-graphics-2"
"mferrari_graphics_pack_1"
"minimalist-rails"
"minime"
"Moshine"
"Moshine-assets"
"muluna-graphics"
"muluna-utility-constants"
"new-diagonal-inserter"
"NightvisionOverhaulSpaceAge"
"no-more-asteroid-quality"
"NoLavaInPipes"
"panglia_planet"
"panglia_planet_assets"
"Paracelsin"
"Paracelsin-Graphics"
"pelagos"
"Pi-C_lib"
"pirateship"
"Planet-Hopper"
"planet-muluna"
"planet-rabbasca"
"planetaris-arig"
"planetaris-hyarion"
"PlanetsLib"
"PlanetsLibTiers"
"Pro-Flashlight"
"promethium-decay"
"pump"
"quality-asteroids"
"quality_glassware"
"rabbasca-assets"
"Railguns-Require-Fluoroketone"
"RateCalculator"
"realistic-flashlight-fixed"
"redrawn-space-compat-fixes"
"Redrawn-Space-Connections"
"Robocharger-Updated"
"RocketCargoInsertion"
"Rocs-Hardcore-Aquilo"
"Rocs-Hardcore-Cargo-Drops"
"Rocs-Hardcore-Cerys"
"Rocs-Hardcore-Delayed-Tech-Tree"
"Rocs-Hardcore-Demolishers"
"Rocs-Hardcore-Fulgora"
"Rocs-Hardcore-Gleba"
"Rocs-Hardcore-Lightning-Storms"
"Rocs-Hardcore-Muluna"
"Rocs-Hardcore-Nauvis"
"Rocs-Hardcore-Probabilistic-Farming"
"Rocs-Hardcore-Space-Tweaks"
"rubia"
"rubia-assets"
"science-tab"
"se-space-trains"
"secretas"
"shchierbin"
"skewer_planet_vesta"
"skewer_planet_vesta_assets"
"skewer_planet_vesta_assets_2"
"skins-factored"
"slp-dyson-sphere-reworked"
"snouz-big-accumulator"
"snouz-big-solar-panel"
"snouz_better_asteroid_collector"
"snouz_better_substation"
"snouz_long_electric_gun_turret"
"snouz_space_platform_hull"
"SolarMatrix"
"Space-Age-Hardcore-Mode"
"space-exploration-graphics"
"space-exploration-graphics-4"
"SpidertronEnhancements"
"SpidertronPatrols"
"tenebris-prime"
"terraria"
"thinking_brain"
"tile-upgrade-planner-muluna"
"Toxic_biters"
"visible-planets"

I would guess the there is a conflict with autobuild, as this happened when I deconstructed pipes, using autobuild.

Thanks for your report, could you perhaps make a smaller scope, confirm that it is indeed with autobuild, and provide steps on how to reproduce.

Not sure if I can help though, but with that information I could try.

I don't have autobuild and got this crash as well. I was doing several loads adding pipes to the whitelist to keep my current factory from exploding and eventually started getting this a second after loading my save file.

I have a similarly large modlist so I tried disabling several planet mods where I had built molten metal but that didn't fix it.

I do think OP is onto something, loading a save file before updating the mod so no pipes had exploded (and I've added the necessary pipes to stop my factory from exploding to the whitelist) stopped the crash from occurring, so it's likely something related to construction or ghosts.

I was unable to reproduce this, even with the full mod set. I noticed you did some changes to the mod in the mean time, so this might be fixed.

Thanks for your reply, I'll put the thread on [fixed] for now. let me know if anything changes