Trash docklet broken

Please start Docky from a terminal as 'docky --debug' and paste the entire log output. Make sure you left click and right click on the trash docklet so we have a log of that.

$ docky --debug
[Info 16:02:41.894] Docky version: 2.1.0 bzr docky r1709 ppa
[Info 16:02:41.942] Kernel version: 2.6.35.23
[Info 16:02:41.946] CLR version: 2.0.50727.1433
[Debug 16:02:43.305] [UserArgs] BufferTime = 10
[Debug 16:02:43.306] [UserArgs] MaxSize = 2147483647
[Debug 16:02:43.315] [UserArgs] NetbookMode = False
[Debug 16:02:43.315] [UserArgs] NoPollCursor = False
[Debug 16:02:43.440] [SystemService] Using org.freedesktop.UPower for battery information
[Info 16:02:43.552] [ThemeService] Setting theme: Classic
[Debug 16:02:43.740] [DesktopItemService] Loading remap file '/usr/share/docky/remaps.ini'.
[Debug 16:02:43.758] [DesktopItemService] Remapping 'Picasa3.exe' to 'picasa'.
[Debug 16:02:43.758] [DesktopItemService] Remapping 'nbexec' to 'netbeans'.
[Debug 16:02:43.763] [DesktopItemService] Remapping 'deja-dup-preferences' to 'deja-dup'.
[Debug 16:02:43.763] [DesktopItemService] Remapping 'VirtualBox' to 'virtualbox'.
[Warn 16:02:43.765] [DesktopItemService] Could not find remap file '/home/nvsbl/.local/share/docky/remaps.ini'!
[Debug 16:02:43.773] [DesktopItemService] Loading desktop item cache '/home/nvsbl/.cache/docky/docky.desktop.en_US.UTF-8.cache'.
[Info 16:02:45.253] [DockServices] Dock services initialized.
[Debug 16:02:45.361] [DBusManager] DBus Registered: org.gnome.Docky
[Debug 16:02:45.391] [DBusManager] DBus Registered: net.launchpad.DockManager
[Debug 16:02:45.991] [PluginManager] Plugin manager initialized.
[Debug 16:02:46.067] [PluginManager] Processing config file for "Battery Monitor".
[Debug 16:02:46.848] [PluginManager] Processing config file for "Bookmarks".
[Debug 16:02:46.850] [PluginManager] Processing config file for "CPU Monitor".
[Debug 16:02:46.863] [PluginManager] Processing config file for "Clock".
[Debug 16:02:46.864] [PluginManager] Processing config file for "Desktop".
[Debug 16:02:46.874] [PluginManager] Processing config file for "Gmail".
[Debug 16:02:46.912] [PluginManager] Processing config file for "Mounter".
[Debug 16:02:46.927] [PluginManager] Processing config file for "NPR".
[Debug 16:02:46.932] [PluginManager] Processing config file for "Network Manager".
[Debug 16:02:46.934] [PluginManager] Processing config file for "Recent Documents".
[Debug 16:02:46.935] [PluginManager] Processing config file for "Session Manager".
[Debug 16:02:46.957] [PluginManager] Processing config file for "Timer".
[Debug 16:02:46.965] [PluginManager] Processing config file for "Trash".
[Debug 16:02:46.969] [PluginManager] Processing config file for "Weather".
[Debug 16:02:46.987] [PluginManager] Processing config file for "Workspace Switcher".
[Info 16:02:48.416] [PluginManager] Loaded "Docky.Widgets,1.0".
[Info 16:02:48.417] [PluginManager] Loaded "Docky.Widgets,1.0".
[Info 16:02:48.418] [PluginManager] Loaded "Weather".
[Info 16:02:48.486] [PluginManager] Loaded "Trash".
[Error 16:02:48.541] [NativeInterop] Failed to query info for '': Operation not supported
[Info 16:02:48.565] [NativeInterop] at Docky.Services.NativeInterop+<GFileQueryInfo>c__AnonStorey2A.<>m__48 () [0x000ab] in /build/buildd/docky-2.1.0~bzr1709/Docky.Services/Docky.Services/NativeInterop.cs:210
  at Docky.Services.NativeIntero...

Icon displays the Trash can and right-click shows the trash content, but when open the trash Soundconversor appearsh instead nautilus.
What have I to do to restore de default behavior?

trash icon in my system running ubuntu-mate 15.04 shows correctly and functions well but every now and then when i boot the trash icon is missing,this is a bug, can you please developers look into my debug output:
ari@ari:~$ docky --debug
[Info 08:00:12.079] Docky version: 2.2.0 Release
[Info 08:00:12.087] Kernel version: 3.19.0.12
[Info 08:00:12.089] CLR version: 4.0.30319.17020
[Debug 08:00:12.329] [UserArgs] BufferTime = 0
[Debug 08:00:12.329] [UserArgs] MaxSize = 2147483647
[Debug 08:00:12.329] [UserArgs] NetbookMode = False
[Debug 08:00:12.329] [UserArgs] NoPollCursor = False
[Error 08:00:12.349] [SystemService] Could not initialize power manager dbus: 'org.freedesktop.DBus.Error.UnknownMethod: Method "Get" with signature "ss" on interface "org.freedesktop.UPower" doesn't exist
'
[Info 08:00:12.351] [SystemService] at Docky.Services.SystemService+IUPowerProxy.Get (System.String interface, System.String propname) [0x00000] in <filename unknown>:0
  at Docky.Services.SystemService.HandleUPowerChanged () [0x00000] in <filename unknown>:0
  at Docky.Services.SystemService.InitializeBattery () [0x00000] in <filename unknown>:0
[Info 08:00:12.370] [ThemeService] Setting theme: Classic
[Debug 08:00:12.376] [DesktopItemService] Loading remap file '/usr/share/docky/remaps.ini'.
[Debug 08:00:12.382] [DesktopItemService] Remapping 'Picasa3.exe' to 'picasa'.
[Debug 08:00:12.382] [DesktopItemService] Remapping 'nbexec' to 'netbeans'.
[Debug 08:00:12.382] [DesktopItemService] Remapping 'deja-dup-preferences' to 'deja-dup'.
[Debug 08:00:12.382] [DesktopItemService] Remapping 'VirtualBox' to 'virtualbox'.
[Warn 08:00:12.383] [DesktopItemService] Could not find remap file '/home/ari/.local/share/docky/remaps.ini'!
[Debug 08:00:12.384] [DesktopItemService] Loading desktop item cache '/home/ari/.cache/docky/docky.desktop.en_US.UTF-8.cache'.
[Info 08:00:12.515] [DockServices] Dock services initialized.
[Error 08:00:12.520] [DBusManager] Bus Name 'org.gnome.Docky' is already owned
[Fatal 08:00:12.520] Another Docky instance was detected - exiting.
ari@ari:~$