Weird server crash (logs + codes)

[Naviehs]

For weird reasons, I am getting those crashes. I am thinking that this is coming from lines of codes that made warriors strongers against monsters.. THANK YOU!

public virtual void AlterMeleeDamageFrom(Mobile from, ref int damage)
{

int toDamage = (int)(from.Skills[SkillName.Tactics].Value * 0.004);
int amount1 = (int)(from.Skills[SkillName.Anatomy].Value * 0.002);
int amount2 = (int)(from.Skills[SkillName.Chivalry].Value * 0.002);
int amount3 = (int)(from.Skills[SkillName.Bushido].Value * 0.002);

toDamage += Utility.Random( 5, 7 ) + amount1 + amount2 + amount3 ;

if (!Controlled && from.Player && from.Skills[SkillName.AnimalTaming].Base <= 50.0 )
{
damage *= toDamage;
}
}





------------- CRASH LOGS 1 ---------------

System.NullReferenceException: Object reference not set to an instance of an object.
at Server.Network.MovingEffect..ctor(IEntity from, IEntity to, Int32 itemID, Int32 speed, Int32 duration, Boolean fixedDirection, Boolean explodes, Int32 hue, Int32 renderMode) in C:\ServUO2\Server\Network\Packets.cs:line 1954
at Server.Effects.SendMovingParticles(IEntity from, IEntity to, Int32 itemID, Int32 speed, Int32 duration, Boolean fixedDirection, Boolean explodes, Int32 hue, Int32 renderMode, Int32 effect, Int32 explodeEffect, Int32 explodeSound, EffectLayer layer, Int32 unknown) in C:\ServUO2\Server\Effects.cs:line 506
at Server.Effects.SendMovingParticles(IEntity from, IEntity to, Int32 itemID, Int32 speed, Int32 duration, Boolean fixedDirection, Boolean explodes, Int32 hue, Int32 renderMode, Int32 effect, Int32 explodeEffect, Int32 explodeSound, Int32 unknown) in C:\ServUO2\Server\Effects.cs:line 422
at Server.Mobile.MovingParticles(IEntity to, Int32 itemID, Int32 speed, Int32 duration, Boolean fixedDirection, Boolean explodes, Int32 effect, Int32 explodeEffect, Int32 explodeSound) in C:\ServUO2\Server\Mobile.cs:line 10673
at Server.Mobiles.RikktorNormal.DoDismount(Mobile m) in C:\Users\Administrator\Desktop\ServUO\Scripts\Custom\Boss\RikktorNormal.cs:line 226
at Server.Mobiles.RikktorNormal.OnGaveMeleeAttack(Mobile defender) in C:\Users\Administrator\Desktop\ServUO\Scripts\Custom\Boss\RikktorNormal.cs:line 219
at Server.Items.BaseWeapon.OnHit(Mobile attacker, IDamageable damageable, Double damageBonus) in C:\Users\Administrator\Desktop\ServUO\Scripts\Items\Equipment\Weapons\BaseWeapon.cs:line 2985
at Server.Items.BaseWeapon.OnSwing(Mobile attacker, IDamageable damageable, Double damageBonus) in C:\Users\Administrator\Desktop\ServUO\Scripts\Items\Equipment\Weapons\BaseWeapon.cs:line 1709
at Server.Items.BaseWeapon.OnSwing(Mobile attacker, IDamageable damageable) in C:\Users\Administrator\Desktop\ServUO\Scripts\Items\Equipment\Weapons\BaseWeapon.cs:line 1654
at Server.Items.Fists.OnSwing(Mobile attacker, IDamageable defender) in C:\Users\Administrator\Desktop\ServUO\Scripts\Items\Equipment\Weapons\Fists.cs:line 268
at Server.Mobile.CombatTimer.OnTick() in C:\ServUO2\Server\Mobile.cs:line 2078
at Server.Timer.Slice() in C:\ServUO2\Server\Timer.cs:line 409
at Server.Core.Main(String[] args) in C:\ServUO2\Server\Main.cs:line 673


------------- CRASH LOGS 2 ---------------

System.NullReferenceException: Object reference not set to an instance of an object.
at Server.Mobiles.BaseCreature.AlterMeleeDamageFrom(Mobile from, Int32& damage) in C:\Users\Administrator\Desktop\ServUO\Scripts\Mobiles\Normal\BaseCreature.cs:line 2134
at Server.AOS.Damage(IDamageable damageable, Mobile from, Int32 damage, Boolean ignoreArmor, Int32 phys, Int32 fire, Int32 cold, Int32 pois, Int32 nrgy, Int32 chaos, Int32 direct, Boolean keepAlive, DamageType type) in C:\Users\Administrator\Desktop\ServUO\Scripts\Misc\AOS.cs:line 394
at Server.AOS.Damage(IDamageable m, Mobile from, Int32 damage, Int32 phys, Int32 fire, Int32 cold, Int32 pois, Int32 nrgy) in C:\Users\Administrator\Desktop\ServUO\Scripts\Misc\AOS.cs:line 61
at Server.AOS.Damage(IDamageable m, Int32 damage, Int32 phys, Int32 fire, Int32 cold, Int32 pois, Int32 nrgy) in C:\Users\Administrator\Desktop\ServUO\Scripts\Misc\AOS.cs:line 56
at Server.Items.RandomToxicBlood.OnMoveOver(Mobile m) in C:\Users\Administrator\Desktop\ServUO\Scripts\Custom\Relaunch\Mini Bosses\RandomToxicBlood.cs:line 37
at Server.Mobiles.Mindflayer.SpitOoze() in C:\Users\Administrator\Desktop\ServUO\Scripts\Custom\Relaunch\Mini Bosses\SuperOgre.cs:line 418
at Server.Mobiles.Mindflayer.OnGotMeleeAttack(Mobile attacker) in C:\Users\Administrator\Desktop\ServUO\Scripts\Custom\Relaunch\Mini Bosses\SuperOgre.cs:line 351
at Server.Items.BaseWeapon.OnHit(Mobile attacker, IDamageable damageable, Double damageBonus) in C:\Users\Administrator\Desktop\ServUO\Scripts\Items\Equipment\Weapons\BaseWeapon.cs:line 2990
at Server.Items.BaseWeapon.OnSwing(Mobile attacker, IDamageable damageable, Double damageBonus) in C:\Users\Administrator\Desktop\ServUO\Scripts\Items\Equipment\Weapons\BaseWeapon.cs:line 1709
at Server.Items.BaseWeapon.OnSwing(Mobile attacker, IDamageable damageable) in C:\Users\Administrator\Desktop\ServUO\Scripts\Items\Equipment\Weapons\BaseWeapon.cs:line 1654
at Server.Items.Fists.OnSwing(Mobile attacker, IDamageable defender) in C:\Users\Administrator\Desktop\ServUO\Scripts\Items\Equipment\Weapons\Fists.cs:line 268
at Server.Mobile.CombatTimer.OnTick() in C:\ServUO2\Server\Mobile.cs:line 2078
at Server.Timer.Slice() in C:\ServUO2\Server\Timer.cs:line 409
at Server.Core.Main(String[] args) in C:\ServUO2\Server\Main.cs:line 673