wm8750: could not get coeff for mclk 11289600 @ rate 48000

[VijayalakshmiSundaravaradhan]

I found that this message is from kernel(https://github.com/spotify/linux/blob/master/sound/soc/codecs/wm8750.c). But what does this mean? Why it is thrown if I run
python3 alexa.py
root@imx7-1gb:~/AlexaDevice-1.1# python3 alexa.py
wm8750: could not get coeff for mclk 11289600 @ rate 48000
wm8750: could not get coeff for mclk 11289600 @ rate 48000
[04/06/2018 06:49:55] PulseAudio wm8750: could not get coeff for mclk 11289600 @ rate 48000
is initialized.
wm8750: could not get coeff for mclk 11289600 @ rate 48000
wm8750: could not get coeff for mclk 11289600 @ rate 48000