Untitled

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1295172688 (LWP 2425)]
WorldSession::HandleGetMail (this=0x89f6040, recv_data=@0xb5c0ea8) at Object.h:157
157                 ASSERT( index < m_valuesCount || PrintIndexError( index , false) );
(gdb) bt
#0  WorldSession::HandleGetMail (this=0x89f6040, recv_data=@0xb5c0ea8) at Object.h:157
#1  0x0811bad8 in WorldSession::Update (this=0x89f6040, diff=112) at WorldSession.cpp:91
#2  0x081180b6 in World::Update (this=0x831ae78, diff=112) at World.cpp:457
#3  0x080969ce in WorldRunnable::run (this=0x8909590) at WorldRunnable.cpp:39
#4  0xb7f96fbe in ZThread::ThreadImpl::dispatch (parent=0x89da408, impl=0x89e6fe8,
    task=@0xb2cd3424) at ThreadImpl.cxx:406
#5  0xb7f991f2 in ZThread::(anonymous namespace)::Launcher::run (this=0xbfcc19cc)
    at ThreadImpl.cxx:49
#6  0xb7f9ca00 in _dispatch (arg=0xbfcc19cc) at posix/ThreadOps.cxx:137
#7  0xb7d84bd4 in start_thread () from /lib/libpthread.so.0
#8  0xb7c154fe in clone () from /lib/libc.so.6
(gdb) bt full
#0  WorldSession::HandleGetMail (this=0x89f6040, recv_data=@0xb5c0ea8) at Object.h:157
        i = (class Item *) 0x0
        data = {<ByteBuffer> = {static DEFAULT_SIZE = 4096, _rpos = 0, _wpos = 135,
    _storage = {<std::_Vector_base<unsigned char,std::allocator<unsigned char> >> = {
        _M_impl = {<std::allocator<unsigned char>> = {<__gnu_cxx::__mt_alloc<unsigned char,__gnu_cxx::__common_pool_policy<__gnu_cxx::__pool, true> >> = {<__gnu_cxx::__mt_alloc_base<unsigned char>> = {<No data fields>}, <No data fields>}, <No data fields>}, _M_start = 0xb025e8e8 "\003\035",
          _M_finish = 0xb025e96f "",
          _M_end_of_storage = 0xb025f8e8 "\b\020"}}, <No data fields>}}, m_opcode = 571}
        pl = Variable "pl" is not available.