Strange Spell crashing issue

[Mortykins]

Hi Folks,

Been having a spell crashing issue , it will happen to random people, with random spells, after investigating I found that even if I logged on to their char I could replicate the bug, but on other chars it wouldn't be there. Anyway here is some of the crash logs if anyone has an idea what I can do to fix this let me know.

[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\mob.cpp (4555): Mob::TrySpellOnKill 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\attack.cpp (2201): NPC::Death 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\attack.cpp (3590): Mob::CommonDamage 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\attack.cpp (2006): NPC::Damage 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\special_attacks.cpp (990): Mob::DoArcheryAttackDmg 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\spell_effects.cpp (2271): Mob::SpellEffect 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\spells.cpp (3762): Mob::SpellOnTarget 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\spells.cpp (5634): Mob::ConeDirectional 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\spells.cpp (2233): Mob::SpellFinished 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\spells.cpp (1288): Mob::CastedSpellFinished 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\spells.cpp (126): Mob::SpellProcess 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\client_process.cpp (516): Client::Process 
[09-11-2015 :: 20:17:15] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\entity.cpp (484): EntityList::MobProcess 
[09-11-2015 :: 20:17:16] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\net.cpp (467): main 
[09-11-2015 :: 20:17:16] [Crash] f:\dd\vctools\crt\crtw32\startup\crt0.c (255): __tmainCRTStartup 
[09-11-2015 :: 20:17:16] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 747286E3) 
[09-11-2015 :: 20:17:16] [Crash] 747286E3 (KERNEL32): (filename not available): BaseThreadInitThunk 
[09-11-2015 :: 20:17:16] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 770FBCE9) 
[09-11-2015 :: 20:17:16] [Crash] 770FBCE9 (ntdll): (filename not available): RtlInitializeExceptionChain 
[09-11-2015 :: 20:17:16] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 770FBCBC) 
[09-11-2015 :: 20:17:16] [Crash] 770FBCBC (ntdll): (filename not available): RtlInitializeExceptionChain

[08-23-2015 :: 09:48:01] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\mob.cpp (4555): Mob::TrySpellOnKill 
[08-23-2015 :: 09:48:01] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\attack.cpp (2201): NPC::Death 
[08-23-2015 :: 09:48:01] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\attack.cpp (3590): Mob::CommonDamage 
[08-23-2015 :: 09:48:01] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\attack.cpp (2006): NPC::Damage 
[08-23-2015 :: 09:48:01] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\special_attacks.cpp (159): Mob::DoSpecialAttackDamage 
[08-23-2015 :: 09:48:01] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\special_attacks.cpp (269): Client::OPCombatAbility 
[08-23-2015 :: 09:48:01] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\client_packet.cpp (478): Client::HandlePacket 
[08-23-2015 :: 09:48:01] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\client_process.cpp (609): Client::Process 
[08-23-2015 :: 09:48:01] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\entity.cpp (484): EntityList::MobProcess 
[08-23-2015 :: 09:48:01] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\net.cpp (467): main 
[08-23-2015 :: 09:48:01] [Crash] f:\dd\vctools\crt\crtw32\startup\crt0.c (255): __tmainCRTStartup 
[08-23-2015 :: 09:48:01] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 765D86E3) 
[08-23-2015 :: 09:48:01] [Crash] 765D86E3 (KERNEL32): (filename not available): BaseThreadInitThunk 
[08-23-2015 :: 09:48:01] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 7790BCE9) 
[08-23-2015 :: 09:48:01] [Crash] 7790BCE9 (ntdll): (filename not available): RtlInitializeExceptionChain 
[08-23-2015 :: 09:48:01] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 7790BCBC) 
[08-23-2015 :: 09:48:01] [Crash] 7790BCBC (ntdll): (filename not available): RtlInitializeExceptionChain

[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\mob.cpp (4555): Mob::TrySpellOnKill 
[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\attack.cpp (2201): NPC::Death 
[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\attack.cpp (3590): Mob::CommonDamage 
[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\attack.cpp (2006): NPC::Damage 
[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\attack.cpp (1378): Client::Attack 
[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\attack.cpp (4443): Mob::DoRiposte 
[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\special_attacks.cpp (139): Mob::DoSpecialAttackDamage 
[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\special_attacks.cpp (1806): NPC::DoClassAttacks 
[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\mob_ai.cpp (1249): Mob::AI_Process 
[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\npc.cpp (727): NPC::Process 
[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\entity.cpp (484): EntityList::MobProcess 
[08-23-2015 :: 11:57:40] [Crash] c:\users\kinglykrab\desktop\raid addicts source\0719\zone\net.cpp (467): main 
[08-23-2015 :: 11:57:40] [Crash] f:\dd\vctools\crt\crtw32\startup\crt0.c (255): __tmainCRTStartup 
[08-23-2015 :: 11:57:40] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 765D86E3) 
[08-23-2015 :: 11:57:40] [Crash] 765D86E3 (KERNEL32): (filename not available): BaseThreadInitThunk 
[08-23-2015 :: 11:57:40] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 7790BCE9) 
[08-23-2015 :: 11:57:40] [Crash] 7790BCE9 (ntdll): (filename not available): RtlInitializeExceptionChain 
[08-23-2015 :: 11:57:40] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 7790BCBC) 
[08-23-2015 :: 11:57:40] [Crash] 7790BCBC (ntdll): (filename not available): RtlInitializeExceptionChain