Fix SFM Character Model Texture Issues

I am experiencing a problem with specific character models in SFM. The models are showing black and purple textures, likely due to an issue with the PNG textures. I need an expert who can troubleshoot and fix these texture issues on the affected models.

Ideal skills for this project include:
- Experience with SFM (Source Filmmaker)
- Proficiency in troubleshooting texture issues
- Familiarity with character model porting
- Ability to work with PNG formats
The model is exported blendee to sfm successfully just facing issue on texture