Ubuntu linuxdcpp error code 17755

I tried accessing linuxdcpp in Ubuntu 12.04 using software called putty in Windows.
I am getting the following errors.

(linuxdcpp:17755): Gtk-CRITICAL **: _gtk_tree_view_find_path: assertion `node != NULL' failed

(linuxdcpp:17755): Gtk-CRITICAL **: IA__gtk_tree_row_reference_new_proxy: assertion `path->depth > 0' failed

(linuxdcpp:17755): GLib-GObject-WARNING **: instance of invalid non-instantiatable type `(null)'

(linuxdcpp:17755): GLib-GObject-CRITICAL **: g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

Kindly let me know what can be wrong.

Thank you.