Hi,
We do not know your Theme or the page builder system that you’re using, but that’s not what is causing the JavaScript conflict with the search widget of VikRentCar.
If you open your link and then check the browser’s JavaScript console, you will notice the following error:
Uncaught ReferenceError: jQuery is not defined – jquery.datetimepicker.full.js:2661:3
The URL to that JS file is https://cdnjs.cloudflare.com/ajax/libs/jquery-datetimepicker/2.5.20/jquery.datetimepicker.full.js and that is not a jQuery plugin or a JavaScript library that VikRentCar needs or loads. First of all, your website is currently loading a useless JS library that no one needs, second thing, this library is a custom jQuery plugin, which is not included in the core framework of WordPress.
We cannot tell you who is loading this script, maybe it’s your Theme if no other plugins are enabled, but the point is that you do not need it, and the script is not even being loaded correctly by causing a JS error that breaks the rest of the jQuery plugins. Please look at the source code of that page to find the following lines of HTML code from line 7 to 9:
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery-datetimepicker/2.5.20/jquery.datetimepicker.full.js"></script>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
As you can see, the script causing the JavaScript error is a jQuery plugin, and it’s being loaded before the base jQuery framework is actually available. This causes a JavaScript error that breaks the rest of the JavaScript components, including the VikRentCar’s widget.
We invite you to double check the settings of your Theme to turn off the loading of these unneeded libraries. Lastly, jQuery and jQuery UI should NOT be loaded from external resources or CDNs as these are included within the WordPress core framework. In fact, VikRentCar would load the WordPress’s native jQuery and jQuery UI libraries available on your website.
We hope this helps.
The VikWP Team