eddycom on "[Plugin: Contact Form 7] Send button load continuously but does not show "Message sent successfully""

Hi,
At the moment I have solved. After having tried everything I uninstalled "Contact Form 7" and reinstalled version 2.2. I worked for exclusion. With this version works. It also works with the plugin SMS "Contact Form 7 - Clockwork SMS". I do not know why but now after submit it displays a "Message has been sent successfully"