HOME Error: Error calling method on NPObject!

Your Windows username contains special characters.
When you click Operate my device, HOME responds with the error Fatal Error -9000. This is because your Windows user name and/or profile folder(s) contain special characters, for example, å è ï ó ü ç ñ. These special characters cause Operate my device to respond with an error in the latest version of HOME.

We are currently working on a solution that will be available in an updated version of TomTom HOME.

Workaround :
Add a new Windows user account without special characters for using TomTom HOME.