Catchable fatal error: Argument 1 passed to Mike42\Escpos\Printer::__construct() must be an instance of Mike42\Escpos\PrintConnectors\PrintConnector, null given, called in C:\Appserv\Apache2.2\htdocs\escpos\escpos-php-development\example\interface\windows-usb.php on line 26 and defined in C:\Appserv\Apache2.2\htdocs\escpos\escpos-php-development\src\Mike42\Escpos\Printer.php on line 361