Fatal error: Uncaught Error: Call to undefined method LemonCMS\Content::get_available_langs() in /cms-core/class.core.php:58 Stack trace: #0 /cms-core/class.core.php(44): LemonCMS\Core->load_client_config() #1 /class.content.php(31): LemonCMS\Core->merge_config() #2 /index.php(3): LemonCMS\Content->__construct() #3 {main} thrown in /cms-core/class.core.php on line 58