A fix

app.py

@@ -99,7 +99,10 @@ def inference(file_name, _batch_mode):
             )
 
     # exclude inference_start, inference_end
-    df = df.drop(["inference_start", "inference_end", "filename"])
+    if _batch_mode:
+        df = df.drop(["inference_start", "inference_end", "filenames"])
+    else:
+        df = df.drop(["inference_start", "inference_end", "filename"])
 
     # round "inference_total" field to 2 decimal places
     df = df.with_columns(pl.col("inference_total").round(2))