'utf-8' codec can't decode byte 0xd0 in position 0: invalid continuation byte

This error occurs when Python is unable to decode a byte string using the UTF-8 encoding. In this specific case, the byte 0xd0 is not a valid continuation byte in the UTF-8 encoding.

To fix this error, you can try the following:

1. Check the encoding of the input file or string. Make sure it is encoded using UTF-8.

2. If the input is not encoded in UTF-8, you can try to decode it using the correct encoding. For example, if the input is encoded in Windows-1251, you can decode it using the following code:

   input_string = input_string.decode('windows-1251')

3. If the input is encoded in a different encoding and you are not sure which one, you can try using the `chardet` library to automatically detect the encoding. For example:

   import chardet
   detected_encoding = chardet.detect(input_string)['encoding']
   input_string = input_string.decode(detected_encoding)

4. If none of the above solutions work, you may need to manually inspect the input to identify any non-UTF-8 characters and manually handle them.