Can you please inspect the browser's console and check if there are any error there? In general, this type of issues might be caused by a conflict between the scripts loaded on the page or the page template and the version of the jQuery libraries Sitefinity uses. By default Sitefinity uses the built-in jQuery library (version 1.8.3) and we highly recommend that you use the same version in your project. To do this, you can use the ResourceLinks
control as shown below which will ensure that the built-in jQuery library is loaded on your page or page template:
<%@ Register Assembly="Telerik.Sitefinity" Namespace="Telerik.Sitefinity.Web.UI" TagPrefix="sf" %>
If you would like to use a different version of jQuery, please refer to the following article
on how to avoid conflicts which may occur between the different versions.
Furthermore, if you have any custom widgets on the page template, can you please try to remove the custom widgets on by one in order to find out if the problematic scripts are loaded by one of the custom widgets?
You may also checkout the discussion in the following forum thread
which is related to a similar issue.
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Sitefinity CMS Ideas&Feedback Portal
and vote to affect the priority of the items