[Jon Jack]

Is your watch dog enabled? If it is, are you feeding your watch dog?

The watch dog is a timer that makes sure that if, for example, your code ends up stuck in a loop and it's not being fed it'll disable your robot. I think that is the timer your mentor is talking about?

You can tell if it's a watch dog problem because in the line on the DS LCD where it says Enabled or Disabled, it says "WATCHDOG" instead. If that's not the case, then it's not a watchdog issue.