problem with saving arasaac license solved

sails/src/api/controllers/SupervisorController.js

@@ -216,9 +216,10 @@ module.exports = {
 
       supervisor.arasaacLicense = true;
       delete supervisor.password;
-      supervisor.save();
-      res.ok();
-
+      supervisor.save((err) => {
+        if (err) throw err;
+        return res.ok();
+      });
     })
     .catch(function (err) {
       return res.serverError(err.message ? err.message : 'Supervisor not found');