Recently Twitter changed their API feed from 1.0 to 1.1. This change reflected all old version of Social Toolbar. We have now updated both the free and PRO versions to reflect these changes. Please update your plugin!
For FREE users, get version 2.4:
Click the download link above in top left corner or go to WordPress.org plugin directory.
For PRO users, get version 1.8:
Go here and put in the email you used to purchase Social Toolbar Pro with.