Rhino6/SR13, Grasshopper Loading errors related to Kangaroo

After updating Rhino6 /SR13 I got these error messages: Can you help me ?

Loading Rhino Render, version 1.50, Feb 27 2019, 00:55:54
Command: _Grasshopper
An error occured during GHA assembly loading:
Path: C:\Users\Jaime\AppData\Roaming\Grasshopper\Libraries\Kangaroo.gha
Exception System.TypeLoadException:
Message: Die Methode “get_InitialOrientation” im Typ “Grab” der Assembly “Kangaroo2Component, Version=, Culture=neutral, PublicKeyToken=null” hat keine Implementierung.
An error occured during GHA assembly loading:
Path: C:\Users\Jaime\AppData\Roaming\Grasshopper\Libraries\Plankton.gha
Exception System.IO.FileNotFoundException:
Message: Die Datei oder Assembly “Plankton, Version=, Culture=neutral, PublicKeyToken=null” oder eine Abhängigkeit davon wurde nicht gefunden. Das System kann die angegebene Datei nicht finden.

I put the Plakton.gha and .dll (version: plankton-69) in the …\Libraries directory

Forget my question. Is seems I got the solution thanks a comment of Gabriella Rossi of the kangaroo discussions group:
… "it turns out there was a wild Kangaroo.gha that is not kangaroo2.gha or kangaroo009.gha that was in my library for some reason and it was conflicting , "…
So I eliminated Kangaroo.gha from my libraries directory and the error message did not appear anymore when calling GH from Rhino 6