I am trying to run a query of all of our email openers that are older than 64.5. My SQL looks right but I keep getting the following "Automation failed due to system error." is this on my end or on SFMC end? Here is the query for reference. Thanks!
SELECT first_name, last_name, gender, state, email, age, lead_id FROM leads l LEFT JOIN _Open c ON c.SubscriberKey=l.lead_id WHERE l.age >= 64.5