key validation server unavailable Post date Home › Forums › Calendar Products › Events Calendar PRO › key validation server unavailable This topic has 5 replies, 2 voices, and was last updated 5 years, 9 months ago by Support Droid. Viewing 1 post (of 1 total) Author Posts June 5, 2018 at 9:53 am #1546599 Support DroidKeymaster This support thread is private. Author Posts Viewing 1 post (of 1 total) The topic ‘key validation server unavailable’ is closed to new replies. → Please verify your API key is correctly entered on the settings