[CTD, Dawnguard] Getting a CTD when Harkon Bites me

[OutgoingChart7]

Here's my load order: 
 

Skyrim.esm

Update.esm

Unofficial Skyrim Patch.esp

Dawnguard.esm

Unofficial Dawnguard Patch.esp

HearthFires.esm

Unofficial Hearthfire Patch.esp

Dragonborn.esm

Unofficial Dragonborn Patch.esp

Schlongs of Skyrim - Core.esm

SMSkyrim.esp

Campfire.esm

ZaZAnimationPack.esm

SexLab.esm

SexLabAroused.esm

Devious Devices - Assets.esm

Devious Devices - Integration.esm

notice board.esp

daymoyl.esm

Devious Devices - Expansion.esm

OSA.esm

HighResTexturePack01.esp

HighResTexturePack02.esp

HighResTexturePack03.esp

Rigmor.esp

JKs Skyrim.esp

RealShelter.esp

BHTNF_Eli.esp

SexLabSkoomaWhore.esp

DF127RiversideShack.esp

Cloaks.esp

sanguinesDebauchery.esp

SexLab-AmorousAdventures.esp

Battlemage Armour.esp

FlameAtronachArmor.esp

FullBootForKKSA.esp

CL BladeofSacrifice.esp

CL Nettlebane.esp

Beards.esp

Brows.esp

freecraft.esp

SkyUI.esp

SOS - VectorPlexus Regular Addon.esp

VioLens.esp

YourMarketStall.esp

zzArmormashups.esp

Frostfall.esp

SexLab_Dialogues.esp

Sneak Tools.esp

Kate.esp

Sneak Tools Vanilla Masks.esp

ArtOfTheCatch.esp

SimplyKnock.esp

RaceMenu.esp

RaceMenuPlugin.esp

Private Needs Discreet.esp

Sneak Tools Vanilla Hoods.esp

RSPatch.esp

dD - Realistic Ragdoll Force - Realistic.esp

KS Hairdo's.esp

Schlongs of Skyrim.esp

LandLord_.esp

FNIS.esp

AdventurersAndTravelers.esp

black mage armor.esp

darkseraticheavyarmor.esp

dawnguard smithing 2.0.esp

dcr_blade_set_reloaded_v1_0.esp

dragonborn smithing 2.0.esp

mslVampiricThirst.esp

faction crossbows.esp

ktxcompleteskyforge.esp

smithing 2.0.esp

woyo-sensei metal recykling.esp

SLAnimLoader.esp

SexLabDefeat.esp

WetandCold.esp

1nivWICCloaks.esp

1nivWICSkyCloaksPatch.esp

Black Mage Armor - Conceal Identity.esp

Loner's Armor.esp

faster vanilla horses.esp

HoamaiiSleepingBags.esp

Golden Rings Of Craft.esp

PuppetMaster.esp

Devious Deviants.esp

SL Deadly Drain.esp

SexLabWorkingGirl.esp

The Ordinary Women.esp

Serana.esp

Brawl Bugs CE.esp

Artillery_DFA.esp

Hunterborn.esp

Vampirelordroyal.esp

iNeed.esp

notice board - dragonborn patch.esp

drakul armor.esp

medusa armor.esp

raven witch armor.esp

evil mastermind armor.esp

Contractor Armor.esp

Royal Bloodline & Vampiric Thirst Patch.esp

TheEyesOfBeauty.esp

Alternate Start - Live Another Life.esp

ImmerSlave.esp

Bashed Patch, 0.esp

 

If anyone can help me and point out which mods are causing the problem that would be great thank you for taking time to read this

[Stuzy44]

I see you have many vampire mods there in your load order.It's safe to assume maybe one or two maybe making your game crash when you become a vampire lord.try deactivating some of them and see how you get on.I use many of these mods you have and don't have this problem but i don't use vampire mods.I hope this helps and you fix the problem.

[OutgoingChart7]

I see you have many vampire mods there in your load order.It's safe to assume maybe one or two maybe making your game crash when you become a vampire lord.try deactivating some of them and see how you get on.I use many of these mods you have and don't have this problem but i don't use vampire mods.I hope this helps and you fix the problem.

 

Yes the royal bloodline perk tree and vampire first are supposed to work together with the compatibility patch so I have no clue I'm afraid. 

[OutgoingChart7]

Ah there was a remake for one of the mods that has a 2 in one. So I've got it to work I think. Thanks for the help anyway