Anyone knows what this error means: Last response code: 400 -> checkpoint_required was received from instagram [accountname]. I can login via browser and phone. On Follow Liker, I've deleted the account in question, closed application, turned off computer, restarted computer, logged back on Follow Liker and created the account in question. Still getting the error message. Settings for the account in questions were low, this is a 2+ years old account with plenty of followers and uploads, been warming it for a week with Follow Liker, less than 400 follows and unfollows per day with 90+ seconds delay time. All other accounts no problem. Any help appreciated.