Running Ajax request not working - ajax

Question

I just migrated to a different bootstrap template now my ajax functions is not working and my php file which handles the functions is not appearing in the XHR inspect tool of chrome.
I only have this jquery script ? is this enough for running an ajax function? I
<!-- Jquery Core Js -->
<script src="../dashboard-assets/plugins/jquery/jquery.min.js"></script>
HTML CODE
<form id="upload_book_form" method="POST">
<p>Upload Books</p>
<input type="file" id="uploadbookinfo" name="uploadbookinfo" value="Import" />
</form>
SCRIPT FUNCTION
<script type="text/javascript">
$(document).ready(function() {
//upload book
$('#uploadbookinfo').change(function() {
$('#upload_book_form').submit();
});
$('#upload_book_form').on('submit', function(event) {
event.preventDefault();
$.ajax({
url: "adminfunctions.php",
method: "POST",
data: new FormData(this),
contentType: false,
processData: false,
success: function(data) {
var getdata = data.trim();
if (getdata == "SUCCESS") {
swal({
title: 'Success!',
text: 'Book Added , Try refreshing the page',
type: 'success',
confirmButtonClass: "btn btn-success",
buttonsStyling: false
}).then(function() {
$("#uploadbookinfo").val(null);
});
} else if (getdata == "ERRORFILETYPE") {
swal({
title: 'Oops...',
text: 'File type is not supported',
type: 'error',
confirmButtonClass: "btn btn-danger",
buttonsStyling: false
}).then(function() {
$("#uploadbookinfo").val(null);
});
} else {
swal({
title: 'Sorry for the inconvenience!',
text: "There's a problem. Please contact the technical support for any concerns and questions.!",
type: 'error',
confirmButtonClass: "btn btn-info",
buttonsStyling: false
}).then(function() {
$("#uploadbookinfo").val(null);
});
}
},
error: function(jqXHR, exception) {
console.log(jqXHR);
}
});
});
});
</script>