Hi,
This is due to the Enhanced Google Analytics WooCommerce plugin. I use two plugins MonsterInsights for normal analytics code and Ehaanced Woocommerce for Enhanced ecommerce analytics code. The Enhanced Google Analytics WooCommerce plugin has a checkbox to also include normal analytics code – which is optional and I left it unchecked. Because of this it throws that error that analytics code is not provided but it has nothing to do with layout issues on the site when defer is active.