ERR Exception in GameTicker

[_xedin_]

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ERR Exception in GameActionTicker
Object reference not set to an instance of object.

This error appears often and it causes many bugs such as mobs don't die, spells can't be casted etc.
Is there any way to solve this problem?

[nor]

Need stack trace, all lines that are after it.

[_xedin_]

I'm sorry, here it is.

1.

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2/8/2005 08:48:18 765 ERR Exception in GameActionTicker!
2/8/2005 08:48:18 765 INF Object reference not set to an instance of an object.
at DOL.GS.Spells.HealSpellHandler.StartSpell(GameLiving target) in d:\dol_data\06.02src\GameServer\spells\HealSpellHandler.cs:line 50
at DOL.GS.Spells.CombatHealSpellHandler.StartSpell(GameLiving target) in d:\dol_data\06.02src\GameServer\spells\CombatHealSpellHandler.cs:line 41
at DOL.GS.Spells.SpellHandler.OnSpellPulse(PulsingSpellEffect effect) in d:\dol_data\06.02src\GameServer\spells\SpellHandler.cs:line 88
at DOL.GS.Effects.PulsingSpellEffect.SpellPulseCallback(GameTimer callingTimer) in d:\dol_data\06.02src\GameServer\effects\PulsingSpellEffect.cs:line 66
at DOL.GS.GameTimerMgr.Ticker() in d:\dol_data\06.02src\GameServer\gameutils\GameTimer.cs:line 268

2.

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2/8/2005 13:41:32 390 ERR Exception in GameActionTicker!
2/8/2005 13:41:32 500 INF Object reference not set to an instance of an object.
at DOL.GS.Spells.SpeedDecreaseSpellHandler.OnEffectExpires(GameSpellEffect effect, Boolean noMessages) in d:\dol_data\06.02src\GameServer\spells\SpeedDecreaseSpellHandler.cs:line 76
at DOL.GS.Effects.GameSpellAndImmunityEffect.Cancel(Boolean playerCanceled) in d:\dol_data\06.02src\GameServer\effects\GameSpellAndImmunityEffect.cs:line 117
at DOL.GS.Effects.GameEffectList.CancelAll() in d:\dol_data\06.02src\GameServer\effects\GameEffectList.cs:line 81
at DOL.GS.GameLiving.Die(GameObject killer) in d:\dol_data\06.02src\GameServer\gameobjects\GameLiving.cs:line 2300
at DOL.GS.GameNPC.Die(GameObject killer) in d:\dol_data\06.02src\GameServer\gameobjects\GameNPC.cs:line 1745
at DOL.GS.GameMob.Die(GameObject killer) in d:\dol_data\06.02src\GameServer\gameobjects\GameMob.cs:line 257
at DOL.GS.GameLiving.TakeDamage(GameObject source, eDamageType damageType, Int32 damageAmount, Int32 criticalAmount) in d:\dol_data\06.02src\GameServer\gameobjects\GameLiving.cs:line 2020
at DOL.GS.GameNPC.TakeDamage(GameObject source, eDamageType damageType, Int32 damageAmount, Int32 criticalAmount) in d:\dol_data\06.02src\GameServer\gameobjects\GameNPC.cs:line 1667
at DOL.GS.GameLiving.DealDamage(AttackData ad) in d:\dol_data\06.02src\GameServer\gameobjects\GameLiving.cs:line 2139
at DOL.GS.GameLiving.AttackTimerCallback(GameTimer attackTimer) in d:\dol_data\06.02src\GameServer\gameobjects\GameLiving.cs:line 1477
at DOL.GS.GameTimerMgr.Ticker() in d:\dol_data\06.02src\GameServer\gameutils\GameTimer.cs:line 268

1

[nor]

Heal is fixed and speed decreaes I'm not sure. There are cases when OnEffectExpires is called twice but I'm not sure how to solve it.

[_xedin_]

What Gameliving.Die?
Mobs in 30% don't die. They are staying with 0 hp but don't give xp and loot.

[nor]

That was supposed to be fixed on 6.Feb.2005 but there is another problem that I can't solve right now. Very rare but still could happen.