@@ -80,7 +80,10 @@ class NeuronModel(BaseModel, OrderedModel):
 
     @property
     def first_stat(self) -> 'ModelStat':
-        return self.stats[0]
+        try:
+            return self.stats[0]
+        except IndexError:
+            return None
 
     @property
     def settings(self) -> 'ModelSettings':