Update app.py

app.py

@@ -116,7 +116,7 @@ def infer(model, replay_file,
     preds.index.name = "Frame"
     if ignore_ties:
         tie_probs = preds["Tie"]
-        preds = preds.drop("Tie")
+        preds = preds.drop("Tie", axis=1)
         preds[[c for c in preds.columns if c.startswith("Blue") or c.startswith("Orange")]] /= (1 - tie_probs)
 
     return preds