Black outline

[Froggy]

I'm having an issue where when using mtoon shader it leave a black outline of my model in some areas. I'm going to be blunt and let you know now, I'm not at all fluent in unity. I was reading some old forums from 2019 for a fix but I can't find said lines of code those forums say to replace and comment out, so I'm at a loss at this point.

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