RhinoInside plugin question

Hi, this is related to Rhino , RhinoInside and Grasshopper
I create plugin for Ansys Discovery Live and i have a problem; when i launch Grasshopper an error about Ghpython components (Ghpy) appears.

And i have question, I used a message box before closing Rhino but it appears even i use _rhinoCore?.Dispose();
How to close Rhino definitely and reopen it again anytime?