Slider would not work

Hi there,

I tried to use Gutenslider on custom post type article but it won’t work.

First, only the images are line up in order so I add CDN code of Swiper on header.php because it seems using swiper.

added code

 <link rel="stylesheet" href="https://unpkg.com/swiper/swiper-bundle.min.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.9.0/slick.min.js"></script>

It seems a slider but it would not change to next slide even I clicked the next button.
According to developer tool, the slider only contain 1 image event I set several images.

If someone know any reason, it would be so helpful.

Thank you.