Hiya @legorille2021 
thanks for reaching out and welcome to the Netlify forums!
Sorry to hear your build is failing. Have you got it working locally first? If not please get it working locally and debug your code.
If it is working locally and failing to deploy on Netlify can you please check out this resource first. See if that helps you resolve your issue…
If those resources don’t get you on the right track, please share these additional details so we can look into your experience further:
- the name of your build instance: “example-jones.netlify.com 1”
- your project repo
- what you have already tried
- your build settings
- the expected behaviour you wish to see
Thanks so much!