(Mixed)Line chart - Error when I add logarithmic in chart

[kihwankim]

If I add logarithmic only for yaxis (left side of the chart) it affects the information of the other axis (right side) by making it part of the yaxis (left side). I want it to only affect the yaxis (on the left) and leave the information of the other axis (right) as it is, is this a bug or is the code wrong?

this is my codepen : https://codepen.io/clearinging/pen/WNRjPNR

I would appreciate your help if you could check it and let me know the solution.

thank you!