First of all, you need to delete the JsonAsAsset plugin, and second of all, you need to edit the DefaultEngine.ini that is located in the config folder, delete all the text and replace it with this:

[/Script/Engine.CollisionProfile]

+Profiles=(Name="Projectile",CollisionEnabled=QueryOnly,ObjectTypeName="Projectile",CustomResponses=,HelpMessage="Preset for projectiles",bCanModify=True)

+DefaultChannelResponses=(Channel=ECC_GameTraceChannel1,Name="Projectile",DefaultResponse=ECR_Block,bTraceType=False,bStaticObject=False)

+EditProfiles=(Name="Trigger",CustomResponses=((Channel=Projectile, Response=ECR_Ignore)))

[/Script/EngineSettings.GameMapsSettings]

EditorStartupMap=/Game/Maps/DemoLevel.DemoLevel

LocalMapOptions=

TransitionMap=

bUseSplitscreen=True

TwoPlayerSplitscreenLayout=Horizontal

ThreePlayerSplitscreenLayout=FavorTop

GameInstanceClass=/Script/Engine.GameInstance

GameDefaultMap=/Game/Maps/DemoLevel.DemoLevel

ServerDefaultMap=/Engine/Maps/Entry

GlobalDefaultGameMode=/Game/Player/HNGameMode.HNGameMode_C

GlobalDefaultServerGameMode=None

[/Script/IOSRuntimeSettings.IOSRuntimeSettings]

MinimumiOSVersion=IOS_11

[/Script/Engine.Engine]

+ActiveGameNameRedirects=(OldGameName="TP_FirstPersonBP",NewGameName="/Script/HNPreAlpha")

+ActiveGameNameRedirects=(OldGameName="/Script/TP_FirstPersonBP",NewGameName="/Script/HNPreAlpha")

[/Script/HardwareTargeting.HardwareTargetingSettings]

TargetedHardwareClass=Desktop

AppliedTargetedHardwareClass=Desktop

DefaultGraphicsPerformance=Maximum

AppliedDefaultGraphicsPerformance=Maximum

[/Script/Engine.RendererSettings]

r.DefaultFeature.AutoExposure=False

[/Script/NavigationSystem.RecastNavMesh]

AgentRadius=60.000000

AgentHeight=30.000000

CellSize=10.000000

TileSizeUU=700.000000

MergeRegionSize=0.000000

AgentMaxHeight=30.000000

AgentMaxSlope=89.000000

AgentMaxStepHeight=30.000000

CellHeight=15.000000

[/Script/GameplayDebugger.GameplayDebuggerConfig]

ActivationKey=Apostrophe

CategoryRowNextKey=Add

CategoryRowPrevKey=Subtract

CategorySlot0=NumPadZero

CategorySlot1=NumPadOne

CategorySlot2=NumPadTwo

CategorySlot3=NumPadThree

CategorySlot4=NumPadFour

CategorySlot5=NumPadFive

CategorySlot6=NumPadSix

CategorySlot7=NumPadSeven

CategorySlot8=NumPadEight

CategorySlot9=NumPadNine

DebugCanvasPaddingLeft=10.000000

DebugCanvasPaddingRight=10.000000

DebugCanvasPaddingTop=10.000000

DebugCanvasPaddingBottom=10.000000

+Categories=(CategoryName="AI",SlotIdx=1,ActiveInGame=UseDefault,ActiveInSimulate=UseDefault,Hidden=UseDefault,bOverrideSlotIdx=False,InputHandlers=)

+Categories=(CategoryName="BehaviorTree",SlotIdx=2,ActiveInGame=UseDefault,ActiveInSimulate=UseDefault,Hidden=UseDefault,bOverrideSlotIdx=False,InputHandlers=)

+Categories=(CategoryName="EQS",SlotIdx=-1,ActiveInGame=UseDefault,ActiveInSimulate=UseDefault,Hidden=UseDefault,bOverrideSlotIdx=False,InputHandlers=((ConfigName="CycleQueries",Key=Multiply),(ConfigName="ToggleDetails",Key=Divide)))

+Categories=(CategoryName="Navmesh",SlotIdx=0,ActiveInGame=UseDefault,ActiveInSimulate=UseDefault,Hidden=UseDefault,bOverrideSlotIdx=False,InputHandlers=)

+Categories=(CategoryName="Perception",SlotIdx=-1,ActiveInGame=UseDefault,ActiveInSimulate=UseDefault,Hidden=UseDefault,bOverrideSlotIdx=False,InputHandlers=)

+Categories=(CategoryName="NavGrid",SlotIdx=-1,ActiveInGame=UseDefault,ActiveInSimulate=UseDefault,Hidden=UseDefault,bOverrideSlotIdx=False,InputHandlers=)

+Extensions=(ExtensionName="GameHUD",UseExtension=UseDefault,InputHandlers=((ConfigName="ToggleHUD",Key=Tilde,bModCtrl=True),(ConfigName="ToggleMessages",Key=Tab,bModCtrl=True)))

+Extensions=(ExtensionName="Spectator",UseExtension=UseDefault,InputHandlers=((ConfigName="Toggle",Key=Tab)))

[/Script/AIModule.AISystem]

bEnableDebuggerPlugin=True

[URL]

GameName=HNUE4Tutorials

[/Script/Engine.PhysicsSettings]

PhysicErrorCorrection=(PingExtrapolation=0.100000,PingLimit=100.000000,ErrorPerLinearDifference=1.000000,ErrorPerAngularDifference=1.000000,MaxRestoredStateError=1.000000,MaxLinearHardSnapDistance=400.000000,PositionLerp=0.000000,AngleLerp=0.400000,LinearVelocityCoefficient=100.000000,AngularVelocityCoefficient=10.000000,ErrorAccumulationSeconds=0.500000,ErrorAccumulationDistanceSq=15.000000,ErrorAccumulationSimilarity=100.000000)

DefaultDegreesOfFreedom=Full3D

bSuppressFaceRemapTable=False

bSupportUVFromHitResults=False

bDisableActiveActors=False

bDisableKinematicStaticPairs=False

bDisableKinematicKinematicPairs=False

bDisableCCD=False

bEnableEnhancedDeterminism=False

AnimPhysicsMinDeltaTime=0.000000

bSimulateAnimPhysicsAfterReset=False

MaxPhysicsDeltaTime=0.033333

bSubstepping=False

bSubsteppingAsync=False

MaxSubstepDeltaTime=0.016667

MaxSubsteps=6

SyncSceneSmoothingFactor=0.000000

InitialAverageFrameRate=0.016667

PhysXTreeRebuildRate=10

+PhysicalSurfaces=(Type=SurfaceType1,Name="Grass")

+PhysicalSurfaces=(Type=SurfaceType2,Name="Dirt")

+PhysicalSurfaces=(Type=SurfaceType3,Name="Wood")

+PhysicalSurfaces=(Type=SurfaceType4,Name="Tile")

+PhysicalSurfaces=(Type=SurfaceType5,Name="Carpet")

+PhysicalSurfaces=(Type=SurfaceType6,Name="Metal")

+PhysicalSurfaces=(Type=SurfaceType7,Name="Paper")

+PhysicalSurfaces=(Type=SurfaceType8,Name="Plastic")

+PhysicalSurfaces=(Type=SurfaceType9,Name="Rail")

+PhysicalSurfaces=(Type=SurfaceType10,Name="Furniture")

+PhysicalSurfaces=(Type=SurfaceType11,Name="Road")

DefaultBroadphaseSettings=(bUseMBPOnClient=False,bUseMBPOnServer=False,bUseMBPOuterBounds=False,MBPBounds=(Min=(X=0.000000,Y=0.000000,Z=0.000000),Max=(X=0.000000,Y=0.000000,Z=0.000000),IsValid=0),MBPOuterBounds=(Min=(X=0.000000,Y=0.000000,Z=0.000000),Max=(X=0.000000,Y=0.000000,Z=0.000000),IsValid=0),MBPNumSubdivs=2)

MinDeltaVelocityForHitEvents=0.000000

ChaosSettings=(DefaultThreadingModel=TaskGraph,DedicatedThreadTickMode=VariableCappedWithTarget,DedicatedThreadBufferMode=Double)

[/Script/LuminRuntimeSettings.LuminRuntimeSettings]

IconPortalPath=(Path="")

IconModelPath=(Path="")