Has nothing to do with the script or the antiban ... You probably played legit on those accounts for a while and due to the suddenly change of behaviour it's easy to detect I guess.
If you are going to play legit a lot of the times and going to bot in between the chance of receiving a bann is higher then botting the account from the start.
So either keep an account 100% botted or 100% legit ;)
Out of thousands of accounts I farmed on I never had any bot banned within a timespan of 6 hours.