This revealed the solution. There was an error involving my naming of the database collection. There seemed to be an error caused by having a dash (-) in the name. If this wasn't the cause of the error, a new database still cleared things up.

Thank you

Hello! I've recently found and fell in love with your service. While experimenting with things, I found that once I add a datasource on the "Data" tab of a page, the app becomes impossible to test. When I try to test, it loads up the testing page and then displays a loading app in the prev...