Resolved
Reported for: WPML Multilingual & Multicurrency for WooCommerce 3.6.11
Resolved in: WPML Multilingual & Multicurrency for WooCommerce 3.7
Overview of the issue
WPML Multilingual & Multicurrency for WooCommerce used a filter from WooCommerce Subscription (‘woocommerce_users_subscriptions’) that was deprecated in the latest version.
This caused some errors to be dumped on the screen on the front end, on the checkout page and the subscription could not be purchased.
Workaround
This was fixed in WPML Multilingual & Multicurrency for WooCommerce 3.7-beta3 available form the WPML.org downloads page.