Correct / Debug my code

Hi ! Im a student and im working on a small project with Arduino nano 33 iot and Adafruit BNO055 sensor , to calculate distance . The IMU sensor present in thr Arduino nano alone is not giving accurate result hence i decided to integrate BNO055 sensor. But now the code isnt working . Please contact if You can Help.

I have attached 2 files:
The calibrated_prototype.ino is the original code using only Arduino uno 33 iot which works but isnt showing accurate values.
the example.ino file needs debugging and correction