For some reason when i try to install a cybernetic spine after some time the spine vanish.

The first error when the spine vanish :

Exception ticking hediff (BEWH_CyberneticSpine spine ticksSinceCreation=1473) for pawn Erane. Removing hediff... Exception: System.NullReferenceException: Object reference not set to an instance of an object
[Ref E06EFD1D]
at Cybernetics40k.HediffComp_PassiveInternalPowerUser.get_ImplantPower () [0x00076] in <301a110f550048e2b46aedb29ec0021b>:0
- TRANSPILER PerformanceOptimizer.Main: IEnumerable`1 PerformanceOptimizer.Optimization_FasterGetCompReplacement:Transpiler(IEnumerable`1 instructions, MethodBase method)
at Cybernetics40k.HediffComp_PassiveInternalPowerUser.CompPostTick (System.Single& severityAdjustment) [0x0002c] in <301a110f550048e2b46aedb29ec0021b>:0
- TRANSPILER Krkr.RocketMan.Soyuz: IEnumerable`1 Soyuz.Patches.HediffComp_Patch+HediffComp_GenHashInterval_Replacement:Transpiler(IEnumerable`1 instructions)
at Verse.HediffWithComps.PostTick () [0x00024] in <69945a8ed6c540cf90b578de735e0605>:0
at Verse.Pawn_HealthTracker.HealthTick () [0x00068] in <69945a8ed6c540cf90b578de735e0605>:0
- TRANSPILER Krkr.RocketMan.Soyuz: IEnumerable`1 Soyuz.Patches.Pawn_HealthTracker_Tick_Patch:Transpiler(IEnumerable`1 instructions, ILGenerator generator)
- TRANSPILER PerformanceOptimizer.Main: IEnumerable`1 PerformanceOptimizer.Optimization_FasterGetCompReplacement:Transpiler(IEnumerable`1 instructions, MethodBase method)
- POSTFIX fuu.bloodanimations: Void BloodAnimations.Pawn_HealthTracker_HealthTick:HealthTick(Pawn_HealthTracker& __instance, Pawn& ___pawn)
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch5 (string)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Pawn_HealthTracker.HealthTick_Patch1 (Verse.Pawn_HealthTracker)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Pawn.Tick_Patch2 (Verse.Pawn)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.TickList.Tick_Patch2 (Verse.TickList)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.TickManager.DoSingleTick_Patch6 (Verse.TickManager)
Verse.TickManager:TickManagerUpdate ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Game.UpdatePlay_Patch4 (Verse.Game)
Verse.Root_Play:Update ()