Fatal error: Uncaught Error: Call to undefined function RegisterPlugin() in /www/wwwroot/web/printer/include.php:5 Stack trace: #0 /www/wwwroot/web/printer/script/writer.php(3): require_once() #1 /www/wwwroot/web/index.php(6): require_once('/www/wwwroot/we...') #2 {main} thrown in /www/wwwroot/web/printer/include.php on line 5