Google calendar automation

I am trying to create an automation following the guide here however when using the automation editor, it does not want to save or work.

In english the trigger is
calendar.holidays_in_united_kingdom from off to on
Condtion = the following condition: template
value_template: {{is_state_attr(‘holidays_in_united_kingdom’, ‘message’, ‘Christmas Lights’) }}

Action would be to activate a scene etc, but i get this error message

Message malformed: Integration ‘’ not found