WP-Admin area jQuery errors

Hi everyone,

I’m hoping that someone can point me in the right direction.

I have a WordPress installation which has some internal jQuery issues on the WP-Admin. Mainly that the Widgets don’t expand/contract to allow you to edit them, the actual menus themselves don’t view on hover, and I can’t update some of the plugins.

I have tried reverting to TwentyTwelve and disabling all the plugins (both at the same time and individually, and I still get the same issue.

I have tried to reinstall the WordPress installation to see if that helps. Still nothing.

The error seems to be within load-scripts.php. I have a screenshot here: http://newentrepreneursfoundation.com/wp-content/uploads/2015/09/screenshot.png

Can anyone help me fix this problem?

Thanks in advance

Chris