Fixed when no Holiday data

src/components/hoildays/helpers/calendar_helper.py

@@ -22,6 +22,9 @@ class CalendarHelper:
     # step two
     # create a dict [date, list[holiday]] according to the sorted list names
     
+    if len(records) == 0:
+      return [], {}
+    
     # step 1
     temp = {}
     names = set()