What does the error message "Run tts error: 'utf-8' codec can't decode byte 0x80" mean?

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This error message typically indicates that there is an issue with character encoding. Specifically, it suggests that a module or program is attempting to decode data using the utf-8 codec, but there is a byte in the data that is incompatible with this encoding (in this case, the byte in question is 0x80). This could be caused by a variety of factors, such as improperly encoded data, a mismatch between the encoding settings of different systems or applications, or a bug in the code itself.