swanksalot

I am having the exact problem as Aaron Friedman describes:

When I click ‘Authorize App’, I am redirected to a plain page that displays the message, ‘you do not have sufficient permissions to access this page.’

—

edit
update, I noticed the URL included wp-admin/admin.php?page=TweetOldPosttners.net/
instead of twitterWidgetPro. I deactivated the plugin called “Tweet Old Posts”, and was able to successfully activate my Twitter acct. Not sure why Tweet Old Posts was interfering, but perhaps looking closely at the URL generated when you click “Authorize Account” might be useful.