The Application has some bugs on production

I've forked the project into my local machine and I've done some changes in the **package.json** file after I pushed and open a pull request. So, as soon as I did that **Netlify** started to deploy those changes, and in the logs I saw some errors. I look for the previous build and it already had an error before. 

I want get start to contribute on this project, Is there interested people here?