Player bots crash on roll...

Player bots crash on roll...

I was having a few of my characters follow me around (characters I created and loaded with the bot AI) and when we had to roll on a green, the server crashed. I am working on mmaps right now and just wanted this noted.
[code]
Baratus T:no possible targets
Baratus PUSH:add gathering loot 2.000000
Baratus A:lfg join - UNKNOWN
Baratus A:add gathering loot - FAILED
Baratus A:follow master - USELESS
Baratus PUSH:follow master 1.000000
Baratus no actions executed
Menelkir --- AI Tick ---
Menelkir T:loot roll
Menelkir PUSH:loot roll 100.000000
Menelkir T:no possible targets
Menelkir PUSH:lfg join 100.000000
Menelkir T:no possible targets
Menelkir PUSH:add gathering loot 2.000000
Menelkir T:timer
Menelkir PUSH:check mount state 1.000000

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff0276700 (LWP 9726)]
0x0000000000dec932 in Reference::isValid (this=0x0)
at /usr/src/zero/server/src/framework/Utilities/LinkedReference/Reference.h:137
137 return iRefTo != NULL;
(gdb) backtrace
#0 0x0000000000dec932 in Reference::isValid (this=0x0)
at /usr/src/zero/server/src/framework/Utilities/LinkedReference/Reference.h:137
#1 0x0000000001134c80 in ai::LootRollAction::Execute (this=0x7fffe0efdd50,
event=...)
at /usr/src/zero/server/src/modules/Bots/playerbot/strategy/actions/LootRollAction.cpp:28
#2 0x00000000010dcf63 in ai::Engine::ListenAndExecute (this=0x7fffd9c0cdf0,
action=0x7fffe0efdd50, event=...)
at /usr/src/zero/server/src/modules/Bots/playerbot/strategy/Engine.cpp:466
#3 0x00000000010db211 in ai::Engine::DoNextAction (this=0x7fffd9c0cdf0, unit=
0x0, depth=0)
at /usr/src/zero/server/src/modules/Bots/playerbot/strategy/Engine.cpp:171
#4 0x000000000108df07 in PlayerbotAI::DoNextAction (this=0x7fffd9bead90)
at /usr/src/zero/server/src/modules/Bots/playerbot/PlayerbotAI.cpp:396
#5 0x000000000108ca6e in PlayerbotAI::UpdateAIInternal (this=0x7fffd9bead90,
elapsed=101)
at /usr/src/zero/server/src/modules/Bots/playerbot/PlayerbotAI.cpp:173
#6 0x00000000010a221e in PlayerbotAIBase::UpdateAI (this=0x7fffd9bead90,
elapsed=101)
at /usr/src/zero/server/src/modules/Bots/playerbot/PlayerbotAIBase.cpp:22
#7 0x000000000108c79d in PlayerbotAI::UpdateAI (this=0x7fffd9bead90,
elapsed=101)
at /usr/src/zero/server/src/modules/Bots/playerbot/PlayerbotAI.cpp:149
#8 0x0000000000cb2189 in Player::Update (this=0x7fffd9bd9c10,
update_diff=101, p_time=101)
at /usr/src/zero/server/src/game/Object/Player.cpp:1331
#9 0x0000000000e32b87 in WorldObject::UpdateHelper::Update (
this=0x7ffff0275c90, time_diff=101)
at /usr/src/zero/server/src/game/Object/Object.h:473
#10 0x0000000000e3cf55 in Map::Update (this=0x5a0ab50,
t_diff=@0x7fffdc3c7db0: 101)
at /usr/src/zero/server/src/game/WorldHandlers/Map.cpp:489
#11 0x0000000000f59af2 in MapUpdateRequest::call (this=0x7fffdc3c7d90)
at /usr/src/zero/server/src/game/Maps/MapUpdater.cpp:50
#12 0x000000000100da42 in DelayExecutor::svc (this=0x370e480)
at /usr/src/zero/server/src/shared/Threading/DelayExecutor.cpp:67
#13 0x00007ffff776b4d7 in ACE_Task_Base::svc_run(void*) ()
from /usr/lib/libACE-6.0.3.so
#14 0x00007ffff776cde5 in ACE_Thread_Adapter::invoke_i() ()
from /usr/lib/libACE-6.0.3.so
#15 0x00007ffff776cef5 in ACE_Thread_Adapter::invoke() ()
from /usr/lib/libACE-6.0.3.so
#16 0x00007ffff5edab50 in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#17 0x00007ffff5c2495d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#18 0x0000000000000000 in ?? ()
[/code]
Next time I'll do loot master and see if ti repeats itself.