diff --git a/parse_report.py b/parse_report.py
index 335d683..79430d0 100644
--- a/parse_report.py
+++ b/parse_report.py
@@ -117,7 +117,9 @@ SCORE_TO_CODE_MAP = {
 
 
 def safe_get(d, *keys):
-    """Attempts both snake_case and camelCase keys."""
+    """Attempts both snake_case and camelCase keys in a dict, handles None safely."""
+    if not isinstance(d, dict):
+        return {}
     for key in keys:
         if key in d:
             return d[key]