Please note our sticky app does not support subscription products at the moment.

2 possible ways to workaround this:

(1) Hiding our sticky app on subscription product page: https://support.apphub.com/en/articles/6269107-hiding-sticky-add-to-cart-on-certain-pages-before-page-load

(2) Removing our app and looking for an alternative app which does integrate with subscriptions OR implementing a native theme sticky button, as detailed in online guides like this one:

https://egnition.io/a/answers/product-organization/add-the-sticky-add-to-cart-button-on-shopify-in-5-minutes