[Alan Anderson]

The blinking amber lights on the PDP indicate that a fault condition has occurred at some point. The roboRIO web dashboard can tell you what that fault was, and will let you clear it so that the lights blink green again. The typical "sticky fault" comes from a low battery voltage condition.

Are you using a fully charged battery? It's possible that your battery is weak and any attempt to run a motor causes the voltage to drop so far that everything shuts down.