My spark lost connection and crashed. One of the blades broke and now I'm getting a motor error warning on my controller display. I think a piece of plastic blade fell into the motor. Any ideas how to get it out?

Hi, I'm sorry to hear about the accident. Please contact our support to start a case and send it in for full diagnosis: https://www.dji.com/support. Thanks!

check the motor one by one using dji assistant windows version in developer mode.