Notify HTML5 Home assistant not starting

I’ve a problem with the notify.html5 config. I’ve followed every step in the guide for setting up the notifications, but when I put the setup in my config file, hass won’t boot. The log only gives me a warning that notify setup took over 10 seconds.

My config:

notify:

  • name: myname
    platform: html5
    gcm_api_key: ‘key’
    gcm_sender_id: ‘id’

The weird thing is that it worked only once, but after reboot of my pi, I got the same error again.

I’m running the latest version of hassbian.

Any help would be appreciated.