Fatal error: Uncaught Error: Call to undefined function add_filter() in /nfs/aesop1/hw00/d73/eph/wordpress/wp-content/plugins/jetpack/jetpack_vendor/automattic/woocommerce-analytics/src/mu-plugin/woocommerce-analytics-proxy-speed-module.php:35 Stack trace: #0 /nfs/aesop1/hw00/d73/eph/wordpress/wp-content/plugins/jetpack/jetpack_vendor/automattic/woocommerce-analytics/src/mu-plugin/woocommerce-analytics-proxy-speed-module.php(83): WooCommerceAnalyticsProxySpeed->init() #1 {main} thrown in /nfs/aesop1/hw00/d73/eph/wordpress/wp-content/plugins/jetpack/jetpack_vendor/automattic/woocommerce-analytics/src/mu-plugin/woocommerce-analytics-proxy-speed-module.php on line 35