I tried your 100% working example...
In Chrome I didn't got this, but the gallery slides are not visible.
When I click on next/prev buttons it seems working and no console errors after page loads at all.
Only in latest Firefox I got this console error:

I'm using latest Alpine, by including in the head: <script src="//unpkg.com/alpinejs" defer></script>
Before body: <script src="./node_modules/@markusantonwolf/ta-gallery/dist/js/alpine-ta-gallery.min.js"></script>
I've configured taGallery as a tailwind plugin, tried to follow your guides here: https://ta-styled-plugins.com/ta-gallery/basic-structure/
I tried your 100% working example...
In Chrome I didn't got this, but the gallery slides are not visible.
When I click on next/prev buttons it seems working and no console errors after page loads at all.
Only in latest Firefox I got this console error:
I'm using latest Alpine, by including in the head: <script src="//unpkg.com/alpinejs" defer></script>
Before body: <script src="./node_modules/@markusantonwolf/ta-gallery/dist/js/alpine-ta-gallery.min.js"></script>
I've configured taGallery as a tailwind plugin, tried to follow your guides here: https://ta-styled-plugins.com/ta-gallery/basic-structure/