rpslam.py Error

[sonurdogan]

Hi!
I am using raspberry pi 4 4gb and rplidar A1. I set up BreezySlam and run the rpslam.py example code but, I got a very different error. Code printed the map then I got the error.
Error:
python3 rpslam.py
/usr/local/lib/python3.9/dist-packages/roboviz/init.py:65: MatplotlibDeprecationWarning:
The set_window_title function was deprecated in Matplotlib 3.4 and will be removed two minor releases later. Use manager.set_window_title or GUI-specific methods instead.
fig.canvas.set_window_title('SLAM')
/usr/local/lib/python3.9/dist-packages/roboviz/init.py:83: UserWarning: FixedFormatter should only be used together with FixedLocator
self.ax.set_xticklabels(labels)
/usr/local/lib/python3.9/dist-packages/roboviz/init.py:84: UserWarning: FixedFormatter should only be used together with FixedLocator
self.ax.set_yticklabels(labels)
Too many measurments in the input buffer: 798/500. Clearing buffer...
Traceback (most recent call last):
File "/home/robotics/Desktop/BreezySLAM/examples/rpslam.py", line 67, in
items = [item for item in next(iterator)]
File "/home/robotics/.local/lib/python3.9/site-packages/rplidar.py", line 357, in iter_scans
for new_scan, quality, angle, distance in iterator:
File "/home/robotics/.local/lib/python3.9/site-packages/rplidar.py", line 333, in iter_measurments
yield _process_scan(raw)
File "/home/robotics/.local/lib/python3.9/site-packages/rplidar.py", line 80, in _process_scan
raise RPLidarException('Check bit not equal to 1')
rplidar.RPLidarException: Check bit not equal to 1