Plugin: BuyCourses: Fix bug in learning path end page/final item when plugin is enabled. End page could not load because of buggy query in services feature of plugin.

Author: ywarnier

plugin/buycourses/src/buy_course_plugin.class.php

@@ -3323,7 +3323,7 @@ public function getServiceSales(
                         $status,
                     ],
                 ],
-                'ORDER' => 'ss.service_id ASC',
+                'ORDER' => $defaultOrder,
             ];
         }