Counter gone static…..

Hi
Im having an issue with the countdown not actually counting down…Ive read through the support and noticed a few people with the same issue and the fix being to comment out <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.js" type="text/javascript"></script> …the problem is i can seem to find that in my themes header.php.

everything was working fine untill i upgraded to WP 3.9.1 so im assuming thats when the error occurred, just cant find whats went wrong…any advice is much appriciated 🙂

https://wordpress.org/plugins/jquery-t-countdown-widget/