gdb and bt full heeelp plx

[mimusassasin]

hi i dont know very well but i read that i need to show u this, when the server crash runing in gdb i put bt full and i got this, why is crashing the server and how i can stop the chrashes?
#0 0x00000000008915d2 in Item::getTile() const ()

No symbol table info available.
#1 0x00000000009ee3d7 in Thing::getPosition() const ()

No symbol table info available.
#2 0x00000000009edfa2 in Teleport::__addThing(int, Thing*) ()

No symbol table info available.
#3 0x00000000009edd94 in Teleport::__addThing(Thing*) ()

No symbol table info available.
#4 0x00000000009f471f in Tile::postAddNotification(Thing_, Cylinder const_, int, cylinderlink_t) ()

No symbol table info available.
#5 0x00000000008187d1 in Game::internalMoveItem(Cylinder_, Cylinder_, int, Item_, unsigned int, Item__, unsigned int, Creature_, Item*) ()

No symbol table info available.
#6 0x000000000081791d in Game::playerMoveItem(unsigned int, Position const&, unsigned short, unsigned char, Position const&, unsigned char) ()

No symbol table info available.
#7 0x0000000000815b53 in Game::playerMoveThing(unsigned int, Position const&, unsigned short, unsigned char, Position const&, unsigned char) ()

No symbol table info available.
#8 0x000000000084f991 in void std::_Mem_fn::operator() to continue, or q to quit---

[marksamman]

#822

[mimusassasin]

now i got this

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff5885700 (LWP 9855)]
0x00000000008915d2 in Item::getTile() const ()
(gdb) bt full
#0 0x00000000008915d2 in Item::getTile() const ()
No symbol table info available.
#1 0x00000000009ee3d7 in Thing::getPosition() const ()
No symbol table info available.
#2 0x00000000009edfa2 in Teleport::addThing(int, Thing) ()
No symbol table info available.
#3 0x00000000009edd94 in Teleport::addThing(Thing) ()
No symbol table info available.
#4 0x00000000009f471f in Tile::postAddNotification(Thing, Cylinder const, int, cylinderlink_t) ()
No symbol table info available.
#5 0x00000000008187d1 in Game::internalMoveItem(Cylinder_, Cylinder_, int, Item_, unsigned int, Item__, unsigned int, Creature_, Item*) ()
No symbol table info available.
#6 0x000000000081791d in Game::playerMoveItem(unsigned int, Position const&, unsigned short, unsigned char, Position const&, unsigned char) ()
No symbol table info available.
#7 0x0000000000815b53 in Game::playerMoveThing(unsigned int, Position const&, unsigned short, unsigned char, Position const&, unsigned char) ()
No symbol table info available.
#8 0x000000000084f991 in void std::_Mem_fn::operator() to continue, or q to quit---