If there was, then there would be about 300 people reporting having been banned.
You were probably reported for botting and then someone checked the logs and/or tried to contact you. You should NEVER let EVE run afk. Even if you do it for a short time, you'll eventually get caught. Also, you should never do "automated looking things" for long periods of time. A GM can look through logs and if you're doing the same thing over and over...well.
ALSO, you should make sure that in the EVE options you have selected NOT to send crash reports to CCP when you crash, etc.
Again, isxeve is ONLY for "AT THE KEYBOARD" use. Sure, *anything* is detectable if a GM takes the time to look for it -- so, if you act like a bot and look like a bot ..then, all he has to do is go and check, and there you have it. You have to play smart.
Finally, and perhaps most importantly, you should understand that most people that use evebot/isxeve for "heavy botting" do so with throw-away accounts. Botting with a "main account" is rather reckless. It might be fine to use isxeve to assist with your main account -- but, never true 'botting behavior'.