diff --git a/core/models/caves.py b/core/models/caves.py
index 7220ee2..5ae4170 100644
--- a/core/models/caves.py
+++ b/core/models/caves.py
@@ -5,7 +5,7 @@ from collections import defaultdict
 from datetime import datetime, timezone
 from pathlib import Path
 
-from django.db import models
+from django.db import models, DataError
 from django.template import loader
 
 import settings