HiHi.
I'm getting the following error:

Error in Save and Load Ideoligion Hair, assembly name: SaveAndLoadIdeoHair, method: Dialog_IdeoHairList_Save:DoFileInteraction, exception: System.MissingMethodException: void Verse.LongEventHandler.QueueLongEvent(System.Action,string,bool,System.Action`1<System.Exception>,bool)
[Ref A597868D]
at (wrapper managed-to-native) System.Reflection.Module.ResolveMethodToken(intptr,int,intptr[],intptr[],System.Reflection.ResolveTokenError&)
at System.Reflection.MonoModule.ResolveMethod (System.Int32 metadataToken, System.Type[] genericTypeArguments, System.Type[] genericMethodArguments) [0x00015] in <eae584ce26bc40229c1b1aa476bfa589>:0
at HarmonyLib.MethodBodyReader.ReadOperand (HarmonyLib.ILInstruction instruction) [0x00431] in <abec11463bc04855a5322a0a868aeb22>:0
at HarmonyLib.MethodBodyReader.GenerateInstructions () [0x00022] in <abec11463bc04855a5322a0a868aeb22>:0
at <0x1ea80176300 + 0x00152> <unknown method>
at HarmonyLib.MethodCopier.GetInstructions (System.Reflection.Emit.ILGenerator generator, System.Reflection.MethodBase method, System.Int32 maxTranspilers) [0x00024] in <abec11463bc04855a5322a0a868aeb22>:0
at HarmonyLib.PatchProcessor.GetOriginalInstructions (System.Reflection.MethodBase original, System.Reflection.Emit.ILGenerator generator) [0x0000b] in <abec11463bc04855a5322a0a868aeb22>:0
at ModErrorChecker.ModErrorChecker.CheckAssemblies () [0x000af] in <b72bf34db030437a89a93bf6e72b4d0c>:0
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch1 (string)
ModErrorChecker.ModErrorChecker/<StartChecks>d__1:MoveNext ()
System.Runtime.CompilerServices.AsyncMethodBuilderCore/MoveNextRunner:InvokeMoveNext (object)
System.Threading.ExecutionContext:RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Runtime.CompilerServices.AsyncMethodBuilderCore/MoveNextRunner:Run ()
System.Threading.Tasks.SynchronizationContextAwaitTaskContinuation/<>c:<.cctor>b__7_0 (object)
UnityEngine.UnitySynchronizationContext/WorkRequest:Invoke ()
UnityEngine.UnitySynchronizationContext:Exec ()
UnityEngine.UnitySynchronizationContext:ExecuteTasks ()

I'm not sure if you need my mod list, it is long, here it is.

Please note, that I add mods 10 at a time to ensure no errors. That's how I found the error with your mod. I am well aware this could be caused by User Error.
brrainz.harmony
ludeon.rimworld
ludeon.rimworld.royalty
ludeon.rimworld.ideology
ludeon.rimworld.biotech
ludeon.rimworld.anomaly
unlimitedhugs.hugslib
oskarpotocki.vanillafactionsexpanded.core
nightmare.core
malteschulze.rimmsqol
kipsmods.adjustableabilitycooldowns
zylle.adjustableage
dubwise.dubsbadhygiene
alt4s.advancedtribalcooler
mlie.animalharvestingspot
oblitus.animalslogic
inglix.appareltaintedoncorpserot
fluffy.areaunlocker
mlie.beatyourprisoners
meltup.beautifuloutdoors
madeline.modmismatchformatter
wastelandr.betterroads
genaeve.blessedtribalapparel
fluffy.blueprints
udon.bouquetoflove
sixdd.burialurns
brrainz.cameraplus
blackfranky.capableslaves
azuraal.choiceofpsycasts
mlie.cleaningpriority
mlie.clothingsorter
foxy.colonistbarbelowdev
thesepeople.eltexhood
thesepeople.craftablestuffableeltex
jelly.craftsmanship
syrus.customizeanimals
nightmare.dbhhotspringcompatibility
doomsday343.mctrait
proxyer.desurgeries.desurgeriescolor
delmaintweaks.roleapparel
kb.prioritizeresearch
lucifer.dormitories
eagle0600.dresspatients.1.4
dubwise.dubspaintshop
avilmask.commonsense
dubwise.dubsbreakmod
dubwise.dubsmintmenus
dubwise.dubsmintminimap
slashandz.easyconversions
erin.hairredux
erin.hair2
uuugggg.tdsbugfixes
uuugggg.tdfindlib
uuugggg.everybodygetsone
erdelf.exportagency
zylle.extraalerts
inglix.fasterbiosculptingpod
tiagocc0.femalebodyvariants
xandrmoro.rim.finishit
zal.fishprops
tials.floordrawings
farxmai2.genebanksexapnded
danielwedemeyer.generipper
aelanna.getoutofmychair
gloomy.gloomyfacemk2.1.4
gloomylynx.kotobike
konneator.grassfloor
elkyelky.grassisstillhay.kotobike
avilmask.grazinglands
arandomkiwi.guardsforme
halloweengraves.velcroboy333
ogliss.ykara.harvesteverything
smuffle.harvestorganspostmortem
syrus.heatmap
zylle.humanleatherfloor
aoba.tent
aoba.tent.igloo
mlie.impassablefurniture
taveron.increasedstack
jaxe.bubbles
dark.jobinbar
crashm.colorcodedmoodbar.11
mlie.justputitoverthere
krafs.levelup
vanya.agent.lolidrophairshop
bdew.longdistance
plaxen.malangbodies
plaxen.malangface
balistar.malangmft
m00nl1ght.mappreview
erdelf.minifyeverything
haplo.miscellaneous.training
taranchuk.moderrorchecker
superniquito.modoptionssort
sc.morevanillatable
sc.morevanillatable.stylesaddon
akke.moreanimestylefaces
nightmare.museums
mlie.musicalinstruments
radzerp.naturalpaths
boundir.newgameplus
squirtingelephant.sleepdisturbed
mlie.noversionwarning
densevoid.onebedtosleepwithall
seohyeon.optimizationmeats
sumika.overflowingflowers
kongkim.paintablespotsobjects
densevoid.hui.personalworkcat
mehni.pickupandhaul
ltbob.preemptivestrike.rimworld
m00nl1ght.unofficialupdates.preparelanding
mlie.prisoncommons
erdelf.prisonerransom
regrowth.botr.core
lucifer.realisticrooms
mitch.asdf.recreationalslotmachine
cedaro.recyclearchitecapsule
fluffy.fluffyrelations
uuugggg.replacestuff
zal.researchspot
kyrun.reunion
brrainz.reversecommands
fissure.richsoilgreen
rimfridge.kv.rw
lwm.deepstoragehotfix
com.github.alandariva.moreplanning
unlimitedhugs.allowtool
jaxe.rimhud
arandomkiwi.rimsaves
sierra.rt.medievaltalents
river.tribal.shoes
mlie.roadsoftherim
telardo.romanceontherim
bdew.romancetweaks
robotrowful.apparel
mobius.royaltytweaks
roolo.runandgun
zylle.sarcophagusistable
guy258.saveandloadideohair
jamaicancastle.shoo
mlie.showmoddesignators
adamkad1.slavejoy
despenso.hithechresearchbench
despenso.simpleresearchbench
sarg.smartspeed
dhultgren.smarterconstruction
weilbyte.snapout
fluffy.colonymanager

Thank you =D