Malachor Dark Jedi Crash

[WeaponMaster_Revan]

so i've been playing the game and it's been flawless for me but i get inside the trayus academy and theres 2 sith marauders and 1 dark jedi. he's invisible and instead of the normal red attack menu it's green like i can talk to him but once i try and attack... CRASH. what is this? i am using a couple mods:

 

90sk's ultimate mod

lightsaber flicker mod

coruscant mod

robe fix.

new hilts mod

[WeaponMaster_Revan]

no one can help me out any? =[

[Nihilus5078]

I suggest drop the mods.