Warning: Use of undefined constant WP_PLUGIN_DIR - assumed 'WP_PLUGIN_DIR' (this will throw an Error in a future version of PHP) in /www/wwwroot/wczhuti/wp-content/plugins/mp3-music-player-by-sonaar/admin/library/cmb2-conditionals/example-functions.php on line 19

Fatal error: Uncaught Error: Call to undefined function add_action() in /www/wwwroot/wczhuti/wp-content/plugins/mp3-music-player-by-sonaar/admin/library/cmb2-conditionals/example-functions.php:28 Stack trace: #0 {main} thrown in /www/wwwroot/wczhuti/wp-content/plugins/mp3-music-player-by-sonaar/admin/library/cmb2-conditionals/example-functions.php on line 28