Push Failed Heroku Deployment

[ShaunWMusic]

emote: npm ERR! Failed at the [email protected] postinstall script.
remote: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
remote:
remote: npm ERR! A complete log of this run can be found in:
remote: npm ERR! /app/.npm/_logs/2018-04-25T21_06_02_441Z-debug.log
remote:
remote: -----> Build failed