I'm no expert on this stuff. I had a Pro that did the same thing. I read in the threads to recalibrate the IMU and the compass. It worked on that one for me. No idea why, but it did!!

I guess there are other reasons this could happen. This is one of the things that I now know to try first.
I have an Advanced that had this issue too, but I have no clue what actually fixed the ESC error. If it was just updated? then the ECS error showed up? It may need a super secret, I mean top secret!!! Update patch!!! haha

But wait for the experts to chime in before you go that route. I may have mixed one up by doing that by just guessing.
Also, I'm not positive on this..But I think I just read that if you try to take off around any metal, this will or could happen. As an example, on a driveway that has rebar or wire mesh inside it for strength.
This may also be a strange question....But....Did you happen to take off prop guards right before this happened? Just asking!!!!

(JKG)
That's all I know....Hopefully, an expert will be by to help you out a little more than I can.