Heroku Cli tritt nicht in den Meister ein
1. confirm your current branch is master
git branch
2. if pointer is not pointing to the master,then checkout to master branch
git checkout master
3. commit your changes and try to push to heroku
git commit -am "xxxyyzzz"
git push heroku master
4. scale app again
heroku ps:scale web=1
Gorgeous Grasshopper