Traffic warning notification "stuck" (Amundsen Nav)

When I was driving last weekend one of those traffic warnings popped up about wrong-way driving somewhere in the country. I pressed ok on the navigation touch screen to dismiss the warning.

But since then, every time I start my car that same warning pops up. I checked the list of traffic incidents and it's still there. Not sure if it's stuck in the car's memory somehow or that it's still broadcasted by the traffic info.

It's been there since Saturday. Can anyone help please?

Edited 17 February, 201511 yr by GerrieS