Believer Rolling to Right and Crashing in TAKEOFF Mode

I’ve had this happen twice now. Is it a motor output issue?

Logs:

https://drive.google.com/drive/folders/19TWz2-IKaGcM4FZizEjhwP3XtMmG_RE4?usp=sharing



You may check your battery because there was a significant voltage drop during the roll


Looks like the autopilot tried to stabilize the plane


The aileron had a huge change of output before the roll. (Assume you used ch1 as aileron)