Update app.py

app.py

@@ -49,7 +49,7 @@ def load_model(xtts_checkpoint, xtts_config, xtts_vocab):
 
     print("Model Loaded!")
 
-def run_tts(lang='es', tts_text, speaker_audio_file):
+def run_tts(lang, tts_text, speaker_audio_file):
     if XTTS_MODEL is None or not speaker_audio_file:
         return "You need to run the previous step to load the model !!", None, None