How to analysis / debug with user crash file. (AnimationLayerMixerPlayable issue)

I am new to working with crash reports. I followed the steps in this:

I clicked [Debug with mixed] in Visual Studio, which led to the results shown in the attached screenshots. It seems the crash was caused by AnimationLayerMixerPlayable.MixRootMotion.

We are using Live2D in Unity version 2020.3.48f1. We also developed a game using Live2D in Unity version 2021.1.9f1 and never encountered this crash issue.

Do you have any suggestions on how to fix this?