minor include fix

Author: detain

src/Plugin.php

@@ -40,7 +40,7 @@ function_requirements('class.Addon');
 	public static function doEnable(\Service_Order $serviceOrder) {
 		$serviceInfo = $serviceOrder->getServiceInfo();
 		$settings = get_module_settings($serviceOrder->get_module());
-		require_once 'include/licenses/license.functions.inc.php';
+		require_once __DIR__.'/../../../../include/licenses/license.functions.inc.php';
 		$pass = vps_get_password($serviceInfo[$settings['PREFIX'].'_id']);
 		function_requirements('directadmin_get_best_type');
 		function_requirements('activate_directadmin');
@@ -51,7 +51,7 @@ function_requirements('activate_directadmin');
 	public static function doDisable(\Service_Order $serviceOrder) {
 		$serviceInfo = $serviceOrder->getServiceInfo();
 		$settings = get_module_settings($serviceOrder->get_module());
-		require_once 'include/licenses/license.functions.inc.php';
+		require_once __DIR__.'/../../../../include/licenses/license.functions.inc.php';
 		function_requirements('deactivate_directadmin');
 		deactivate_directadmin($serviceInfo[$settings['PREFIX'].'_ip']);
 	}