Drone not flying...

[Nighthawk1901]

I used the discover.js program to discover my rolling spider, then ran a test program. Node.js cmd prompt shows that the program is running, and there no errors, but still the drone won't take off. I've tried this program with my rolling spider before, and it has worked, meaning there is no fault within the program. However, it is inconsistent and only sometimes takes off. I've waited 5 minutes before for the drone to do something, but still no reaction. Whats more, after i kill the program since the drone doesn't take off, and try to run it again, it gives me a "noble warning, unknown peripheral exxxxxxxxxxxx. Please help as i enjoyed the flights with the rolling spider the times it did work.