Pinger errors summary hotfix

Change-Id: I373f3e9184fad91065995a149aee7810ecfdae03
Related-PROD: PROD-35903
diff --git a/cfg_checker/modules/network/__init__.py b/cfg_checker/modules/network/__init__.py
index c4a74d7..005ca38 100644
--- a/cfg_checker/modules/network/__init__.py
+++ b/cfg_checker/modules/network/__init__.py
@@ -223,7 +223,7 @@
         return
     else:
         # save what was collected
-        _pinger.errors.save_iteration_data()
+        _pinger.mapper.errors.save_iteration_data()
 
         # print a report
         _pinger.print_summary()