ajuda erro deconhecido

alguem pode ajudar ??

meu server estava online mas do nada travo e deu esse erro

src/central_freelist.cc:333] tcmalloc: allocation failed 16384
src/central_freelist.cc:333] tcmalloc: allocation failed 16384
PANIC: unprotected error in call to Lua API (not enough memory)
Allocation failed, server out of memory!
Decrease size of your map or compile in a 64-bit mode.
terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::lock_error> >'
  what():  boost: mutex lock failed in pthread_mutex_lock: Invalid argument