Applied update but still not working



A@A-Desktop:~$ qbittorrent 
Peer ID: -qB2220-
HTTP user agent is qBittorrent v2.2.2
Warning: Local domain socket was not closed cleanly, deleting file...
qbittorrent: malloc.c:3929: __libc_valloc: Assertion `!p || ((((mchunkptr)((char*)(p) - 2*(sizeof(size_t)))))->size & 0x2) || ar_ptr == (((((mchunkptr)((char*)(p) - 2*(sizeof(size_t)))))->size & 0x4) ? ((heap_info *)((unsigned long)(((mchunkptr)((char*)(p) - 2*(sizeof(size_t))))) & ~((2 * (512 * 1024))-1)))->ar_ptr : &main_arena)' failed.


*************************************************************
Catching SIGABRT, please report a bug at http://bug.qbittorrent.org
and provide the following backtrace:
stack trace:
  [0x732400]
  [0x732422]
  /lib/tls/i686/cmov/libc.so.6 : gsignal()+0x51  [0x224d4d1]
  /lib/tls/i686/cmov/libc.so.6 : abort()+0x182  [0x2250932]
  /lib/tls/i686/cmov/libc.so.6 : __assert_fail()+0xf8  [0x2246648]
  /lib/tls/i686/cmov/libc.so.6 : __libc_valloc()+0x19f  [0x22926ef]
  /usr/lib/libtorrent-rasterbar.so.6 : libtorrent::page_aligned_allocator::malloc(unsigned int)+0x1d  [0xf705ed]
  /usr/lib/libtorrent-rasterbar.so.6 : boost::pool<libtorrent::page_aligned_allocator>::ordered_malloc_need_resize()+0x5a  [0xf9b7ea]
  /usr/lib/libtorrent-rasterbar.so.6 : libtorrent::disk_buffer_pool::allocate_buffer(char const*)+0xa6  [0xf93b66]
  /usr/lib/libtorrent-rasterbar.so.6 : libtorrent::aux::session_impl::allocate_disk_buffer(char const*)+0x29  [0x1051a99]
  /usr/lib/libtorrent-rasterbar.so.6 : libtorrent::peer_connection::allocate_disk_receive_buffer(int)+0x6a  [0x102238a]
  /usr/lib/libtorrent-rasterbar.so.6 : libtorrent::bt_peer_connection::on_piece(int)+0x585  [0xf7c5a5]
  /usr/lib/libtorrent-rasterbar.so.6 : libtorrent::bt_peer_connection::dispatch_message(int)+0x158  [0xf7f358]
  /usr/lib/libtorrent-rasterbar.so.6 : libtorrent::bt_peer_connection::on_receive(boost::system::error_code const&, unsigned int)+0x278  [0xf7f6c8]
  /usr/lib/libtorrent-rasterbar.so.6 : libtorrent::peer_connection::on_receive_data(boost::system::error_code const&, unsigned int)+0xfd  [0x1029efd]
  /usr/lib/libtorrent-rasterbar.so.6 : boost::asio::detail::handler_queue::handler_wrapper<boost::asio::detail::binder2<libtorrent::peer_connection::allocating_handler<boost::_bi::bind_t<void, boost::_mfi::mf2<void, libtorrent::peer_connection, boost::system::error_code const&, unsigned int>, boost::_bi::list3<boost::_bi::value<boost::intrusive_ptr<libtorrent::peer_connection> >, boost::arg<1>, boost::arg<2> > >, 256u>, boost::system::error_code, unsigned int> >::do_call(boost::asio::detail::handler_queue::handler*)+0xb2  [0x1030f42]
  /usr/lib/libtorrent-rasterbar.so.6 : boost::asio::detail::task_io_service<boost::asio::detail::epoll_reactor<false> >::run(boost::system::error_code&)+0x4ac  [0xfce70c]
  /usr/lib/libtorrent-rasterbar.so.6 : libtorrent::aux::session_impl::operator()()+0x5c  [0x105da7c]
  /usr/lib/libtorrent-rasterbar.so.6 : boost::detail::thread_data<boost::reference_wrapper<libtorrent::aux::session_impl> >::run()+0x23  [0x1074363]
  /usr/lib/libboost_thread-mt.so.1.38.0 : thread_proxy()+0x5d  [0x65ac1d]
  /lib/tls/i686/cmov/libpthread.so.0 [0xdfc80e]
  /lib/tls/i686/cmov/libc.so.6 : clone()+0x5e  [0x22ef8de]
Aborted