Licode erizojs(c++ node) carsh

Licode version pre_5.4 (Last November) erizoJs (c++ node) occasionally breaks down.Brecause I found that there will be a core file under erizoAgent. I use gdb for debugging.
Once crash in notifyStats,I guess delete mediastream but is still receiving rtcp messages. Once crash libniceconnection g_main_loop_run,I don’t know why.