If you are having trouble with your configuration, consider checking the following:
Depending upon the error, in order to proceed, you will need to consider:
- Is the app configuration correct? If not, can it be corrected?
- Is the "managed app" actually not managed?
- Is the managed app the wrong version?
- Is a substitution variable not being updated in the managed app configuration? What type of substitution variable was it? See Supported variables.