Woocommerce loading forever when Checkout on Mobile Device

Hey,

My issue is, that when I’m purchasing something in my store on a mobile device it would not checkout but load forever.

You can try it too. The song is free:

https://boernimusic.com/product/crew-number-1-woman-world-record-song-grizzly/

On the regular computer browser it works!

Many thanks for your help.

Best

B?rni

The page I need help with: [log in to see the link]