Fix typo for advance order #403

src/Controller/APIController.php

@@ -3063,7 +3063,7 @@ class APIController extends Controller implements LoggedController
         $hub_rider_slots = [];
 
         // check each JO's date_schedule, decrement rider_slots if date schedule falls in that slot
-        foreach ($jos_advance_order as $jo)
+        foreach ($jos_advance_orders as $jo)
         {
             // get date key
             $date_sched = $jo->getDateSchedule();