Hi @daystartv,
I couldn’t find what’s causing this, but the error is triggered from jQuery UI Slider library.
/*!
* jQuery UI Slider 1.11.4
* http://jqueryui.com
*
* Copyright jQuery Foundation and other contributors
* Released under the MIT license.
* http://jquery.org/license
*
* http://api.jqueryui.com/slider/
*/
!function(a){"function"==typeof define&&define.amd?define(["jquery","./core","./mouse","./widget"
Would you mind creating a staging copy of your live site in WPEngine? Then please provide the FTP login credentials and I’ll check through there.
Thanks!