Glider.js not working. My carousel, using glider JS is not working/

I tried to create a carousel using glider.js from https://nickpiscitelli.github.io/Glider.js/, I followed all the steps, yet it is not working. May you help me? I click the arrow and it won't move.

<div class="glider-contain">

    <button class="glider-prev">
        <i class="fa fa-chevron-left"></i>        
    </button>



    <div class="glider">
        <div> <img src="./img/barcelona-img.png" alt="Barcelona"></div>

        <div> <img src="./img/madrid.png" alt="Madrid"></div>

        <div> <img src="./img/paris.png" alt="Paris"></div>

        <div> <img src="./img/paris.png" alt="Paris"></div>

        <div> <img src="./img/paris.png" alt="Paris"></div>
    </div>

    <button class="glider-next">
        <i class="fa fa-chevron-right"></i>        
   </button>


</div>

</div>

<script src="./glider.min.js"></script>
<script src="../index.js "></script>
<script>
    new Glider(document.querySelector('.glider'), {
        slidesToShow: 3,
        dragable: true,
        arrows: {
            prev: '.glider.prev',
            next: '.glider-next'
        }
    })
</script>