I cant even post the xml content here since it exceeds the character limit.
Name: Nanami Bigelow-Kento
Age: YoungAdult
Gender: Male
SimDescriptionId: 8008526940870826640
LotHomeId: 8008526940870826720
HomeWorld: UserCreated
Proper Genealogy
Valid: False
Species: Human
Household: Kento
Occult: None
Alien: 0
Career: (1)
School: <None>
Lot: Toddler's Time - 4br, 1ba
Address:
Skill Charisma: 3
Skill Cooking: 0
Skill Dancing: 0
Skill Table Tennis: 0
Skill Guitar: 0
Skill Handiness: 3
Skill Nerd Influence: 0
Skill Jock Influence: 0
Skill Social Networking: 1
Skill Arcade Machine: 0
Skill Pool: 4
Skill Collecting: 0
Skill Photography: 0
Trait Loves To Swim
Trait Brooding
Trait Discount Diner
Trait Observant
Trait Proper
Trait Nurturing
Trait Ambitious
Trait Office Hero

Interactions:
1: Go to Garden
Sims3.Gameplay.Autonomy.GoToGarden+Definition
Sims3.Gameplay.Autonomy.GoToGarden+Definition
Autonomous

Counter: 105
Sim-Time: Tue. at 5:33 PM
Start-Time: 01/27/2024 21:39:41
PreLoadup-Time: 01/27/2024 21:42:57
Log-Time: 01/27/2024 21:47:14

System.InvalidOperationException: Operation is not valid due to the current state of the object
#0: 0x0001f throw in System.Collections.Generic.System.Collections.Generic.SortedList`2:PutImpl (Sims3.Gameplay.Actors.Sim/WalkStyle,int,bool) (71E1F900 [36] [0] [0] )
#1: 0x0000f call in System.Collections.Generic.System.Collections.Generic.SortedList`2:Add (Sims3.Gameplay.Actors.Sim/WalkStyle,int) (71E1F900 [36] [0] )
#2: 0x0003c call in System.Collections.Generic.System.Collections.Generic.SortedList`2:.ctor (System.Collections.Generic.IDictionary`2,System.Collections.Generic.IComparer`1) (71E1F900 [1139026688/0x43e42b00] [1520595856/0x5aa27390] )
#3: 0x0003c newobj in Sims3.Gameplay.Actors.Sims3.Gameplay.Actors.SimRoutingComponent:InitializeWalkStylePriorities () ()
#4: 0x00001 call in Sims3.Gameplay.Actors.Sims3.Gameplay.Actors.SimRoutingComponent:OnStartup () ()
#5: 0x000d8 callvirt in Sims3.Gameplay.Abstracts.Sims3.Gameplay.Abstracts.GameObject:Init (bool) (4BD36800 [1] )
#6: 0x0001b callvirt in ScriptCore.ScriptCore.ScriptProxy:PostLoad () ()



Object:

Name: Larissa Boggs
Type: Sims3.Gameplay.Actors.Sim
Object id: 0x6f2400d46f27d960
Position: (992.4999, 15.5045, 1317.0000)
Room id: 0
Level: 0
Flags: InWorld, IsUsed
Lot: Sims3.Gameplay.Core.Lot
Lot Name: Salmon Woods Elementary
Lot Address: 50 Market Square
IsValid: True
World: UserCreated
OnVacation: False
Season: Fall
Posture: Sims3.Gameplay.ActorSystems.InRabbitHolePosture
Household: Boggs
No LotHome
SimDescription:

Name: Larissa Boggs
Age: Adult
Gender: Female
SimDescriptionId: 8008526947205385776
LotHomeId: 0
HomeWorld: UserCreated
Proper Genealogy
Valid: False
Species: Human
Household: Boggs
Occult: None
Alien: 0
Career: (1)
School: <None>
Skill Photography: 0
Trait Loser
Trait Good
Trait Hot-Headed
Trait Mooch
Trait Angler

Interactions:
1: Career Data Not Loaded
NRaas.CareerSpace.Interactions.WorkInRabbitHoleEx+Definition
NRaas.CareerSpace.Interactions.WorkInRabbitHoleEx+Definition
UserDirected

Counter: 106
Sim-Time: Tue. at 5:33 PM
Start-Time: 01/27/2024 21:39:41
PreLoadup-Time: 01/27/2024 21:42:57
Log-Time: 01/27/2024 21:47:14

System.InvalidOperationException: Operation is not valid due to the current state of the object
#0: 0x0001f throw in System.Collections.Generic.System.Collections.Generic.SortedList`2:PutImpl (Sims3.Gameplay.Actors.Sim/WalkStyle,int,bool) (71EA7F60 [36] [0] [0] )
#1: 0x0000f call in System.Collections.Generic.System.Collections.Generic.SortedList`2:Add (Sims3.Gameplay.Actors.Sim/WalkStyle,int) (71EA7F60 [36] [0] )
#2: 0x0003c call in System.Collections.Generic.System.Collections.Generic.SortedList`2:.ctor (System.Collections.Generic.IDictionary`2,System.Collections.Generic.IComparer`1) (71EA7F60 [1139745184/0x43ef21a0] [1520595856/0x5aa27390] )
#3: 0x0003c newobj in Sims3.Gameplay.Actors.Sims3.Gameplay.Actors.SimRoutingComponent:InitializeWalkStylePriorities () ()
#4: 0x00001 call in Sims3.Gameplay.Actors.Sims3.Gameplay.Actors.SimRoutingComponent:OnStartup () ()
#5: 0x000d8 callvirt in Sims3.Gameplay.Abstracts.Sims3.Gameplay.Abstracts.GameObject:Init (bool) (4BCD9800 [1] )
#6: 0x0001b callvirt in ScriptCore.ScriptCore.ScriptProxy:PostLoad () ()



Loaded Assemblies:
09521388182540
20849626528181
29074878566006
32433165524235
38439209988303
45135940299363
46089487385502
52843487453781
59167188105082
71146919645028
97408408330865
Alcohol
AniBusinessAsUnusualBistro
AniClothingPedestal
BlackMail
Buzz_AgingManager
Buzz_SameEnergyForEveryBed
CCL006246477
CCL109080072
CCL185746926
CCL199504896
CCL204079331
CCL255888314
CCL277005648
CCL387389080
CCL431333412
CCL452551107
CCL614488294
CCL734799704
CCL780133325
CCL854342338
CCL881765657
CCLoader
CherryTS3_CancelTimeoff
ClassGardenerService2
Cmominator
ConsortModGrow
ConsortModGrowCake
Desecrate.DeathNote
Enirei
Fantuanss12.Harverster_TempFix
Fantuanss12.ProfessionalChefOven
Gamefreak130.JobOverhaul
GardeningSpell
GetToKnow
GlobalOptionsSewingTable
HaveCoffeeWithMe
Hospital Mod - Sep 2012 - for supernatural
HumilationMod
MSC_v1
MintFreelanceModel
Mod_NewGen
MonocoDoll.GovernmentBenefitsAndServices
NRaasAntiMagicScroll: Version 9
NRaasCareer: Version 87
NRaasConsigner: Version 22
NRaasCupcake: Version 6
NRaasDreamer: Version 15
NRaasDresser: Version 38
NRaasErrorTrap: Version 100
NRaasGoHere: Version 44
NRaasHomeOpener: Version 11
NRaasMasterController: Version 134
NRaasMasterControllerCheats: Version 134
NRaasMover: Version 28
NRaasNoCD
NRaasOnceRead: Version 13
NRaasOverwatch: Version 122
NRaasPorter: Version 42
NRaasRegister: Version 81
NRaasRelationshipPanel: Version 20
NRaasRelativity: Version 23
NRaasSaver: Version 21
NRaasSelector: Version 13
NRaasShooless: Version 18
NRaasSleepFreedom: Version 21
NRaasStoryProgression: Version 267
NRaasTempest: Version 15
NRaasTraffic: Version 21
NRaasTraveler: Version 87
NRaasVector: Version 19
NRaasWoohooer: Version 129
NRaasWrittenWord: Version 10
NoFreeWorkout
PhoebeJaySims.SimPost
PutAwayBooks
Savanita.PickUpToddlerFix
Savanita.PregnancyInteractions
Savanita_ToddlerInteractions
ScriptCore
SellFromInventory
SewingTableSocials
SewingTable_Repaired
SimIFace
Sims3.Gameplay.Objects.CmoCigarette
Sims3.Gameplay.Objects.CmoWindow
Sims3GameplayObjects
Sims3GameplaySystems
Sims3Metadata
Sims3StoreObjects
SimsMxZodiac
SleepyGenius.Mod.TaxiCharge
StoreObjectsBakersStation
StoreObjectsCarnivalFoodMachine
StoreObjectsCarousel
StoreObjectsCowPasture
StoreObjectsCraftersConsignment
StoreObjectsDoorOfLifeAndDeath
StoreObjectsFixerCar
StoreObjectsFountainGondola
StoreObjectsGalleryShopBase
StoreObjectsGalleryShopDoor
StoreObjectsGlassAndJewelryWorkbench
StoreObjectsGondola
StoreObjectsHotTubGrottoGeo
StoreObjectsJamMakingStation
StoreObjectsMillWheel
StoreObjectsPhoneTableMidCModsuite
StoreObjectsPriusPlugin
StoreObjectsRollerCoaster
StoreObjectsStaircaseLanding
StoreObjectsStaircaseLandingMansion
StoreObjectsStoreHarvestables
StoreObjectsTeaSet
StoreObjectsToyMachine
StoreObjectsTractor
StoreObjectsWhackAChicken
StoreObjectsZoe
System
System.Xml
TS3Apartments
TheKnifeProject
ToddlerAskFor
Twinsimming_Attend_University_Online_Mod
Twinsimming_Livestreaming_Mod
Twinsimming_New_Scholarships_Mod
Twinsimming_Sunscreen_Mod_V3
Twinsimming_Upgraded_Video_Game_Skill
TwoBTech.Mods.Commons
TwoBTech.Mods.TakeHomeFoods
UI
Violence And Aggression
_b_BreakIntoHouse
ani_DonationBox
ani_OFBStand
ani_ShopForClothes
ani_WorkManager
ani_taxcollector
cmarXmods.PregnancyController
icarusallsorts.CookWithAnyIngredient
icarusallsorts.ServeMeals
lizcandorToddlerIndependence
makeupkit
mintmodel
modeljobboard
mscorlib
simler90Extras
spherefish_OneWithNature
velocitygrass_AddAnyLotSize
</Content>
</NRaas.ErrorTrap>

1 - You have a walk style mod, or a mod the includes the code for walk styles, that is outdated or faulty. That is causing the current errors.

2 - Your hospital mod is outdated and should be removed to prevent damage to ongoing saves.

3 - Your game is not eligible for further support from this site while you are using Simler90's Core Mod as that mod is not compatible with NRaas mods. That's why we have it listed on the "Read This Before You Post Here" thread at the top of the message board you posted on.