Dasshio configuration

I’m trying to make Amazon dash button switch on my light. When I save config in dasshio addon my home assistant crashes and I have to reflash hassio to sd card and restore everything.

{
“timeout”: 20,
“buttons”: [
{
“name”: “Gillette”,
“address”: “6C:56:97:0E:6A:BD”,
“domain”: “light”,
“service”: “toggle”,
“service_data”: “{“entity_id”: “light.living_room_main”}”
}
]
}

Any ideas whats going on?