Fatal error: Uncaught Error: Call to undefined function Automattic\Jetpack\Classic_Theme_Helper\apply_filters() in /opt/app-root/src/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-classic-theme-helper/src/class-main.php:63 Stack trace: #0 /opt/app-root/src/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-classic-theme-helper/src/class-main.php(45): Automattic\Jetpack\Classic_Theme_Helper\Main->load_modules() #1 /opt/app-root/src/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-classic-theme-helper/src/class-main.php(133): Automattic\Jetpack\Classic_Theme_Helper\Main::init() #2 {main} thrown in /opt/app-root/src/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-classic-theme-helper/src/class-main.php on line 63