It seems that some of the scripts you load on the problematic page template cause the conflict. What I can suggest is to try to remove the scripts you load one by one in order to determine which one causes the issue.
Based on our experience these type of errors may occur if you load two different versions of jQuery on the page. Please note that in Sitefinity version 8.0 we use the built-in jQuery library version 1.11.2 and we highly recommend that you use the same version if your current Sitefinity version is 8.0. This way you will avoid any script conflicts.
You can check the scripts which are loaded in your project and their versions under Administration -> Settings -> Advanced -> Pages -> Script Manager -> Script references
The best approach is to use the ResourceLinks
control as shown below in order to ensure 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" %>
Please refer to the following article
for more details.
If you would like to use a different version of jQuery, please refer to the following article
on how to load different version of jQuery and to avoid conflicts which may occur between the different versions.
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