Reference Error: j is not defined

[Hiabuto-de]

There's a bug in this SourceFile, which leads to ReferenceError: j is not defined when you try to use arrays for multiple plots.
Looks like a copy & paste Error.

https://github.com/flexdash/node-red-fd-corewidgets/blob/c874ac3212c6d7f2b0189357b61263c3a14e132d/custom/time-plot.js#L57C88-L57C88