Fatal error: Uncaught Error: Call to undefined function add_action() in /opt/app-root/src/wp-content/plugins/jetpack/modules/markdown/easy-markdown.php:883 Stack trace: #0 /opt/app-root/src/wp-content/plugins/jetpack/modules/markdown.php(17): require() #1 {main} thrown in /opt/app-root/src/wp-content/plugins/jetpack/modules/markdown/easy-markdown.php on line 883