Evergreen Post Tweeter enables you to schedule and automatically tweet out links to old posts.
Why does nothing happen when I click on the Twitter logo to link my account?
The first thing you should do is attempt the process in a different browser.
If that doesn't work, the issue is almost always related to your hosting provider. The most common causes are:
You should contact your hosting provider and provide them with a link to this page. They should then be able to resolve the issue.
Worst case scenario, you will have to move hosting providers – these issues are not something the plugin has any control over.