Warning: require_once(/app/core/includes/environment.php): Failed to open stream: No such file or directory in /app/core/includes/header.inc.php on line 12

Fatal error: Uncaught Error: Failed opening required '/app/core/includes/environment.php' (include_path='.:/usr/local/lib/php') in /app/core/includes/header.inc.php:12 Stack trace: #0 /app/index.php(7): require_once() #1 {main} thrown in /app/core/includes/header.inc.php on line 12