Notice: Undefined variable: playlist in /workspace/app/page_embed.php on line 2 Fatal error: Uncaught Error: Call to a member function isPreSaveEnabled() on null in /workspace/app/page_embed.php:2 Stack trace: #0 /workspace/app/index.php(98): require_once() #1 /workspace/index.php(76): require_once('/workspace/app/...') #2 {main} thrown in /workspace/app/page_embed.php on line 2