Qbittorrent won't start

I tried uninstalling libtorrent just to be sure , but this comes up.

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Catching SIGSEGV, please report a bug at http://bug.qbittorrent.org
and provide the following backtrace:
stack trace:
  [0x746400]
  /usr/lib/libstdc++.so.6 : std::_Rb_tree_increment(std::_Rb_tree_node_base*)+0x25 [0x1b64775]
  /usr/lib/libtorrent-rasterbar.so.5 : libtorrent::policy::find_connect_candidate()+0x30b [0x507946b]
  /usr/lib/libtorrent-rasterbar.so.5 : libtorrent::policy::connect_one_peer()+0x2c [0x507981c]
  /usr/lib/libtorrent-rasterbar.so.5 : libtorrent::torrent::try_connect_peer()+0x39 [0x50b7529]
  /usr/lib/libtorrent-rasterbar.so.5 : libtorrent::aux::session_impl::second_tick(boost::system::error_code const&)+0x10d1 [0x508b6d1]
  /usr/lib/libtorrent-rasterbar.so.5 : boost::asio::detail::handler_queue::handler_wrapper<boost::asio::detail::binder1<boost::_bi::bind_t<void, boost::_mfi::mf1<void, libtorrent::aux::session_impl, boost::system::error_code const&>, boost::_bi::list2<boost::_bi::value<libtorrent::aux::session_impl*>, boost::arg<1> > >, boost::system::error_code> >::do_call(boost::asio::detail::handler_queue::handler*)+0x7b [0x5096e5b]
  /usr/lib/libtorrent-rasterbar.so.5 : boost::asio::detail::task_io_service<boost::asio::detail::epoll_reactor<false> >::run(boost::system::error_code&)+0x350 [0x504be90]
  /usr/lib/libtorrent-rasterbar.so.5 : libtorrent::aux::session_impl::operator()()+0x84 [0x508f4d4]
  /usr/lib/libtorrent-rasterbar.so.5 : boost::detail::thread_data<boost::reference_wrapper<libtorrent::aux::session_impl> >::run()+0x23 [0x50a4213]
  /usr/lib/libboost_thread.so.1.40.0 : thread_proxy()+0x65 [0xa257c5]
  /lib/tls/i686/cmov/libpthread.so.0 : ()+0x596e [0x47396e]
  /lib/tls/i686/cmov/libc.so.6 : clone()+0x5e [0x1557a4e]
Segmentation fault