Hi there, glad you found us 
Sorry to hear you are having deploy issues! Have you seen this Support Guide about frequently encountered issues during build? Additionally, have you searched the forums for other exit cod 127: npm run build errors?
Lastly, if you have worked through the above support guide as well as some additional forums threads, please tell us:
Please share:
- what you have already tried
- any error messages you have received in your terminal window or in the developer console
- your repo