Event Calendar Pro – License Error Post date Home › Forums › Calendar Products › Events Calendar PRO › Event Calendar Pro – License Error This topic has 2 replies, 3 voices, and was last updated 8 years ago by HERMAN CRAWFORD. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts April 13, 2018 at 4:20 pm #1507147 HERMAN CRAWFORDParticipant Good day, I’ve purcahsed updated to events calendar pro. When the license key is entered an error “Your Event Aggregator license key is invalid. Visit the Events Calendar website to check your licenses”. How do I activate the license key? April 18, 2018 at 11:12 am #1510467 JenniferKeymaster Hi Herman, It looks like this is a duplicate of this thread, where we’re working on this issue, so I’ll go ahead and close this one out. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The topic ‘Event Calendar Pro – License Error’ is closed to new replies. → Please verify your API key is correctly entered on the settings