seg exception on the m_receiveBuffer->insert() line

[yalov]

Hello, I have the segmentation fault exception, and gdb stackstace leads to the scs (# 3)

#0  std::vector<unsigned char, Scs::Allocator<unsigned char> >::_M_range_insert<unsigned char const*> (this=0x7fff3771f7f0, 
    __position=non-dereferenceable iterator for std::vector, 
    __first=0x7fff9c033001 "", __last=__last@entry=0x7fff9c03300d "")
    at /usr/include/c++/9/bits/vector.tcc:778
        __len = <optimized out>
        __new_start = 0x7fff3771f810 ""
        __new_finish = <optimized out>
        __n = 12
#1  0x0000555555679d19 in std::vector<unsigned char, Scs::Allocator<unsigned char> >::_M_insert_dispatch<unsigned char const*> (__last=0x7fff9c03300d "", 
    __first=<optimized out>, __pos=..., this=<optimized out>)
    at /usr/include/c++/9/bits/stl_vector.h:1659
No locals.
#2  std::vector<unsigned char, Scs::Allocator<unsigned char> >::insert<unsigned char const*, void> (__last=0x7fff9c03300d "", __first=<optimized out>, 
    __position=..., this=<optimized out>)
    at /usr/include/c++/9/bits/stl_vector.h:1380
        __offset = <optimized out>
#3  Scs::ReceiveQueue::Push (this=0x7fffc8000eb8, data=0x7fff98000b90, 
    bytes=18446744073642236835)
    at /home/user/myproject/scs/src/ScsReceiveQueue.cpp:72
        bytesToWrite = 12
        maxBytes = <optimized out>
        lock = {_M_device = @0x7fffc8000f08}
        dataBytes = <optimized out>
#4  0x000055555567c239 in Scs::Server::RunConnection (this=0x7fffe0001b00, connection=std::shared_ptr<Scs::Server::ClientConnection> (use count 3, weak count 0) = {...}) at /usr/include/c++/9/bits/shared_ptr_base.h:1020
        receivedData = std::shared_ptr<std::vector<unsigned char, Scs::Allocator<unsigned char> >> (empty) = {get() = 0x0}
        bytesReceived = <optimized out>
        timeoutTime = {__d = {__r = 1727394494716978591}}
        receiveBuffer = std::shared_ptr<std::vector<unsigned char, Scs::Allocator<unsigned char> >> (use count 1, weak count 0) = {get() = 0x7fff98000b70}
#5  0x000055555567ca3e in Scs::Server::<lambda()>::operator() (__closure=<optimized out>) at /usr/include/c++/9/ext/atomicity.h:96
        connection = <optimized out>
        this = <optimized out>
        connection = <optimized out>
        this = <optimized out>
#6  std::__invoke_impl<void, Scs::Server::RunListener()::<lambda()> > (__f=...) at /usr/include/c++/9/bits/invoke.h:60
No locals.
#7  std::__invoke<Scs::Server::RunListener()::<lambda()> > (__fn=...) at /usr/include/c++/9/bits/invoke.h:95
No locals.
#8  std::thread::_Invoker<std::tuple<Scs::Server::RunListener()::<lambda()> > >::_M_invoke<0> (this=<optimized out>) at /usr/include/c++/9/thread:244
No locals.
#9  std::thread::_Invoker<std::tuple<Scs::Server::RunListener()::<lambda()> > >::operator() (this=<optimized out>) at /usr/include/c++/9/thread:251
No locals.
#10 std::thread::_State_impl<std::thread::_Invoker<std::tuple<Scs::Server::RunListener()::<lambda()> > > >::_M_run(void) (this=<optimized out>) at /usr/include/c++/9/thread:195
No locals.
#11 0x00007ffff723fdf4 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#12 0x00007ffff7359609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736104212224, -4388621802091818142, 140736903362510, 140736903362511, 140736903362512, 140736104204928, 4388512946482336610, 4388641092072526690}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#13 0x00007ffff6f2a353 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

The only thing that I have understood there is # 3 has a garbage amount of bytes as function argument.
but maybe you will unstand more from the # 4, and where is the problem