diff --git a/apps/enm/tasks.py b/apps/enm/tasks.py
index f978b398..4b3eaaba 100644
--- a/apps/enm/tasks.py
+++ b/apps/enm/tasks.py
@@ -365,6 +365,7 @@ def cal_enstat(type, sflogId, mgroupId, year, month, day, hour, year_s, month_s,
         mytz = tz.gettz(settings.TIME_ZONE)
         dt = datetime.datetime(year=year, month=month, day=day, hour=hour, tzinfo=mytz)
         sflog = get_sflog(mgroup, dt)
+    team = None
     if sflog:
         year_s, month_s, day_s = sflog.get_ymd
         team = sflog.team
@@ -387,7 +388,7 @@ def cal_enstat(type, sflogId, mgroupId, year, month, day, hour, year_s, month_s,
         enstat, _ = EnStat.objects.get_or_create(
             type="day_s", mgroup=mgroup, year_s=year_s, month_s=month_s, day_s=day_s, defaults={"type": "day_s", "mgroup": mgroup, "year_s": year_s, "month_s": month_s, "day_s": day_s}
         )
-    elif type == "month_st":
+    elif type == "month_st" and team:
         enstat, _ = EnStat.objects.get_or_create(
             type="month_st", mgroup=mgroup, team=team, year_s=year_s, month_s=month_s, defaults={"type": "month_st", "mgroup": mgroup, "year_s": year_s, "month_s": month_s, "team": team}
         )