Can someone help me with crash at my ots?

[Kajteq]

Crash log

#0  0x082ab850 in Tile::__queryDestination (this=0x35ddd518, 
    index=@0xb6238108, thing=0xc312cd4, destItem=0xb6238100, flags=@0xb6238104)
    at tile.cpp:876
876			if(Thing* destThing = destTile->getTopDownItem())
(gdb) bt full
#0  0x082ab850 in Tile::__queryDestination (this=0x35ddd518, 
    index=@0xb6238108, thing=0xc312cd4, destItem=0xb6238100, flags=@0xb6238104)
    at tile.cpp:876
	destThing = <value optimized out>
	destTile = (Tile *) 0x35ddd518
#1  0x081b620f in Map::placeCreature (this=0xb4289b0, centerPos=@0xd636b38, 
    creature=0xc312970, extendedPos=false, forced=true) at map.cpp:256
	toCylinder = <value optimized out>
	foundTile = true
	placeInPz = false
	tile = (Tile *) 0x35ddd518
	shufflePos = 0
	relList = {<std::_Vector_base<std::pair<int, int>,std::allocator<std::pair<int, int> > >> = {
    _M_impl = {<std::allocator<std::pair<int, int> >> = {<__gnu_cxx::new_allocator<std::pair<int, int> >> = {<No data fields>}, <No data fields>}, 
      _M_start = 0xdace6c8, _M_finish = 0xdace708, 
      _M_end_of_storage = 0xdace708}}, <No data fields>}
	tryPos = {x = 0, y = 0, z = 0}
	index = 0
	flags = 0
	toItem = (class Item *) 0x0
#2  0x080eaaa9 in Game::internalPlaceCreature (this=0x834a200, 
---Type <return> to continue, or q <return> to quit---
    creature=0xc312970, pos=@0xd636b38, extendedPos=<value optimized out>, 
    forced=<value optimized out>) at game.cpp:813
No locals.
#3  0x080edd8e in Game::placeCreature (this=0x834a200, creature=0xc312970, 
    pos=@0xd636b38, extendedPos=<value optimized out>, 
    forced=<value optimized out>) at game.cpp:841
	tmpPlayer = (class Player *) 0x0
	list = {<std::_List_base<Creature*,std::allocator<Creature*> >> = {
    _M_impl = {<std::allocator<std::_List_node<Creature*> >> = {<__gnu_cxx::new_allocator<std::_List_node<Creature*> >> = {<No data fields>}, <No data fields>}, _M_node = {_M_next = 0xb62381c8, _M_prev = 0x81bdb6d}}}, <No data fields>}
#4  0x0827eea4 in Spawn::spawnMonster (this=0xd636a80, spawnId=2, 
    mType=0xb2d50c8, pos=@0xd636b38, dir=NORTH, startup=false) at spawn.cpp:317
	monster = (class Monster *) 0xc312970
#5  0x08280062 in Spawn::checkSpawn (this=0xd636a80) at spawn.cpp:392
	monster = <value optimized out>
	spawnId = 2
	spawnCount = 1
#6  0x08281752 in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void, Spawn>, boost::_bi::list1<boost::_bi::value<Spawn*> > >, void>::invoke (function_obj_ptr=@0xdd48890)
    at /usr/include/boost/bind/mem_fn_template.hpp:49
	f = (
---Type <return> to continue, or q <return> to quit---
    boost::_bi::bind_t<void,boost::_mfi::mf0<void, Spawn>,boost::_bi::list1<boost::_bi::value<Spawn*> > > *) 0xdb24438
#7  0x082a535e in boost::function0<void, std::allocator<void> >::operator() (
    this=0x35ddd518) at /usr/include/boost/function/function_template.hpp:692
No locals.
#8  0x082a5132 in Dispatcher::dispatcherThread (p=0x0) at tasks.h:33
	task = (Task *) 0xdd48880
#9  0xb6fde80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
#10 0xb70bf7ee in clone () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.

Look at this page, and please help me... I Don't know how I can remove it...