Ok, so we setup a new WP website with WooCommerce, everything is working great except the login / register of users via woocommerce.
If we try logging in via website.com/wp-login / wp-register , is working fine.
But when is with woocommerce is giving same error all the time:
Action failed. Please refresh the page and retry.
There is no explanation what exactly is failing.
We are using the theme Cheope.