ValueError: Invalid value NaN (not a number) #21

need help，I get some errors when downloading the album，thx！

Client : INFO Login Successful
Bugs : INFO Album: JK 김동욱 - Life Sentence [2002.05.18].
Bugs : INFO Downloading cover artwork.
Bugs : INFO dl2\JK 김동욱 - Life Sentence [2002.05.18]\1. 다신 없겠죠.flac already exists.
Bugs : INFO Track: 2. 미련한 사랑
100%|█████████████████████████████████████████████████████████████████████████████| 30.3M/30.3M [00:04<00:00, 7.91MB/s]
Traceback (most recent call last):
File "X:\Bugs\bugs.py", line 266, in
main()
File "X:\Bugs\bugs.py", line 243, in main
album_rip(album_id=id)
File "X:\Bugs\bugs.py", line 144, in album_rip
tag(album=meta, track=track, file_path=post_path, cover_path=cover_path)
File "X:\Bugs\bugs.py", line 185, in tag
lyrics = get_lyrics(track['lyrics_tp'], track['track_id'])
File "X:\Bugs\bugs.py", line 172, in get_lyrics
lyrics = ("\n".join(
File "X:\Bugs\bugs.py", line 173, in
f'[{datetime.fromtimestamp(round(float(a), 2)).strftime("%M:%S.%f")[0:-4]}]{b}' for a, b in
ValueError: Invalid value NaN (not a number)