406 error....?

[hqforumx]

Hello, I went to MyBB Admin CP and tried to edit one of my templates which is called headerinclude I then tried to paste this code as I needed to do so... Which is this below..

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
jQuery.noConflict();
jQuery(document).ready(function($) {
    $(".tab_content").hide();
    $("ul.tabs li:first").addClass("active").show();
    $(".tab_content:first").show();
    $("ul.tabs li").click(function() {
        $("ul.tabs li").removeClass("active");
        $(this).addClass("active");
        $(".tab_content").hide();
        var activeTab = $(this).find("a").attr("href");
        $(activeTab).fadeIn();
        return false;
    });
});
</script>

But yes unfortunately I got this error when i tried to save it once I've pasted that code in

Not Acceptable
An appropriate representation of the requested resource /admin/index.php could not be found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

Please could you help how to fix this error? :/

Thank You

 

[hqforumx]

Anybody bothered to help me here please I'm still having issues with this...