Issues being reported with Twitter widget and API

I think they made the Twitter API a premium feature that requires a credit card.

So I don't plan on signing up for any paid subscription so development for this module may be limited to very small things.

This may be the module you are looking for if you have a premium subscription to Twitter:

https://www.drupal.org/project/twitter_api_block →

I guess it may be worth adding a message on this module's front-page that Twitter requires a premium paid subscription so users are aware for transparency.

I don't plan to get a premium subscription either.