Fatal error: Uncaught Error: Call to undefined function add_filter() in /usr/local/apache/hosting/biblioteca.colognomonzese/www/v1/wp-content/plugins/jetpack/jetpack_vendor/automattic/woocommerce-analytics/src/mu-plugin/woocommerce-analytics-proxy-speed-module.php:35 Stack trace: #0 /usr/local/apache/hosting/biblioteca.colognomonzese/www/v1/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 /usr/local/apache/hosting/biblioteca.colognomonzese/www/v1/wp-content/plugins/jetpack/jetpack_vendor/automattic/woocommerce-analytics/src/mu-plugin/woocommerce-analytics-proxy-speed-module.php on line 35