I have a running heroku app but every time i try to push what I added to the project to heroku the app still works and in the dashboard there's written "Deployed" but when i try it is still in the older version.
I tried to follow some guides but they didn't work for me (for example the answer from here: Heroku and Github : Items could not be retrieved, Internal server error)
I used to do automatic deploys using github but since that doesn't work anymore i'm using git to push to the repo and to heroku manually
P.S My app runs on java