Fix: Lang check

app.py

@@ -50,10 +50,14 @@ lid_model.predict = types.MethodType(_predict_np2_compat, lid_model)
 
 def is_eng(review: str):
     lang_labels, lang_probs = lid_model.predict(review)
+
+    if not lang_labels:  # kein Label zurückgegeben
+        return False, 0.0
+    
     lang_label = lang_labels[0]
     lang_prob = float(lang_probs[0])
 
-    return lang_label[1] == "__lang_en__", lang_prob
+    return lang_label[1] == "__label__en", lang_prob
 
 ### Do actual prediction ##############################################