Error while data collection

[SExpert12]

Hello community,
While running the data collection file, I am stuck with this error:

File "/Downloads/data-collector-master/carla/client.py", line 181, in _parse_sensor_data
sensor_id = struct.unpack('<L', data[0:4])[0]
struct.error: unpack requires a buffer of 4 bytes

Any one knows how to solve this?