sbroways

You have to make sure that your app is not in Sandbox mode as well. I got the same error and that was the solution for me.

I updated to the latest jQuery UI and fixed it for me too. The problem is caused by jQuery and jQuery UI being out of sync. So if you update WordPress and it starts calling the latest jQuery library, you can start to run into some issues if you don’t call the lastest UI library as well.

I used the edits explained here:
https://www.ads-software.com/support/topic/plugin-twitter-widget-pro-no-tweets-available

The issue was with the api url being https instead of http. Once I changed that, the redirect worked immediately.