I've been trying to use something to ping my heroku app to keep it awake. I first tried using https://kaffeine.herokuapp.com/ but quickly found it to be unreliable and my app would still periodically shut down. Now I'm using https://cron-job.org/ and it is wonderful. I tried cancelling kaffeine from running, but it doesn't seem to be working. I go to the website and click "remove your app?" I see that the url gets #decaf put at the end, but when I put my website in the box and click the button it just says "App already added". Does anyone have any idea how to stop it from pinging my website?