diff --git a/src/server/BreCal/database/sql_handler.py b/src/server/BreCal/database/sql_handler.py
index c228e8c..f34f345 100644
--- a/src/server/BreCal/database/sql_handler.py
+++ b/src/server/BreCal/database/sql_handler.py
@@ -218,8 +218,6 @@ class SQLHandler():
     
     def get_times_of_shipcall(self, shipcall)->pd.DataFrame:
         df_times = self.df_dict.get('times') # -> pd.DataFrame
-        if df_times is None:
-            return None
         df_times = df_times.loc[df_times["shipcall_id"]==shipcall.id]
         return df_times
     
diff --git a/src/server/BreCal/validators/validation_rules.py b/src/server/BreCal/validators/validation_rules.py
index 2753446..febbff4 100644
--- a/src/server/BreCal/validators/validation_rules.py
+++ b/src/server/BreCal/validators/validation_rules.py
@@ -31,6 +31,9 @@ class ValidationRules(ValidationRuleFunctions):
         # prepare df_times, which every validation rule tends to use
         df_times = self.sql_handler.df_dict.get('times') # -> pd.DataFrame
 
+        if len(df_times)==0:
+            return (StatusFlags.GREEN.value, [])
+
         # filter by shipcall id
         df_times = self.sql_handler.get_times_of_shipcall(shipcall)