Wheelzoom not working in carousel bootstrap: why not?

[veldfiets]

**This is the html/body:

.. previous ..

    <div class="carousel-item">
        <img class="zoom d-block w-10" src="slides/slider-1.jpg" data-color="black" alt="foto">
		<script src="wheelzoom.js"></script>
           <script>
        wheelzoom(document.querySelectorAll ('img.zoom'));
        </script>
		<div class="carousel-caption d-md-block">
             <h5>Langwarder Groden, detail</h5>		
        </div>
	</div> Etc., more slides to come. Thanks for any solution. P.s. the wheelzoom.js I dowloaded via Download/JackMoore-site. 

[veldfiets]

Conflicting javascripts.