diff --git a/components/payments/paymentService.js b/components/payments/paymentService.js
index 240d738..8473553 100644
--- a/components/payments/paymentService.js
+++ b/components/payments/paymentService.js
@@ -13,6 +13,7 @@ const Class = require('../classes/classModel');
 const Session = require('../sessions/sessionModel');
 const { omitNotifyFields } = require('../../utils/notifyFlags');
 const { parseImportDate } = require('../../utils/jalaliDate');
+const { buildClassScheduleContext } = require('../../utils/classSchedule');
 const { resolveNotifyFlags } = require('../../utils/notifyResolver');
 const { notifyAction } = require('../../utils/actionNotify');
 const {