Hi,
This plugin was working perfectly until I updated it. Now I can't even access my website, there's just a blank page saying the following: ''Fatal error: Call to undefined function storefront_get_content_background_color() in /the address of the website and plugin/ on line 216''.
Any ideas how to work it out? The plugin is great and I need it back!!!
Regards
https://wordpress.org/plugins/storefront-sticky-add-to-cart/