I have a sandbox account I am trying to test API. I created an app. However, it was working few days ago, doesn’t work anymore.
When I do install and test it says, app not found. Note that, my personal account’s free trial has ended, but my sandbox account seems to be okay but my public app is not working anymore.
I think the Oauth setting are also okay. I don’t understand why it says “App not found” Public app name “Smindle”. Does anyone know how can I solve this?