fix

app.py

@@ -476,7 +476,10 @@ def gen_tts_and_save_to_path(text, filename):
         text=text,
         model="eleven_turbo_v2"
     )
+
     full_path = "audio/" + filename + ".mp3"
+    os.makedirs(os.path.dirname(full_path), exist_ok=True)
+
     save(audio, full_path)
     return full_path