flask python <p>Failed to decode JSON object: 'utf-8' codec can't decode byte 0xff in position 106: invalid start byte</p> code example

Example: UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb0 in position 1968: invalid start byte

pd.read_csv("C:/Users/Admin/Desktop/Python/Past.csv",encoding='cp1252')