The following error occurs when trying to run the installable cloud app.
Cause: The application has not been deployed against this Web APIs.
You probably has created multiple PowerServer solutions, hence multiple Web APIs.
You can access the API: api/Application/LoadAll to confirm. JSON strings similar to the following will be displayed. You can check the JSON string to see which application is deployed against which Web APIs.
Solution 1: You can specify the URL of the Web APIs for an application. The Change the Web API URL section has detailed instructions.
Solution 2: If you want to run an application against Web APIs where the application has not been deployed or if you have deployed more than one application to the same Web APIs solution (which is normally not recommended, because there may be deployment conflicts in the future), check the Applications.json file in the Web APIs solution and make sure the app name matches and is properly configured. (If you store the configurations in the database instead of the file, check the PowerServer_ApplicationConfig table instead of the Applications.json file.)