Fatal error: Uncaught RuntimeException: Unexpected data in output buffer. Maybe you have characters before an opening <?php tag? in /var/www/webroot/ROOT/Adult/vendor/slim/slim/Slim/App.php:622 Stack trace: #0 /var/www/webroot/ROOT/Adult/vendor/slim/slim/Slim/App.php(317): Slim\App->finalize(Object(Slim\Http\Response)) #1 /var/www/webroot/ROOT/Adult/public/index.php(15): Slim\App->run() #2 {main} thrown in /var/www/webroot/ROOT/Adult/vendor/slim/slim/Slim/App.php on line 622