Update app.py

app.py

@@ -86,3 +86,9 @@ if file_input is not None and source_language_code and target_language_code:
         file_name="translated_subtitles.srt",
         mime="text/plain",
     )
+
+    st.markdown("""
+    ### Some Error you can have:
+    - **If into your file your have** : Failed to load model for aa to ab: Helsinki-NLP/opus-mt-aa-ab is not a local folder and is not a valid model identifier listed on 'https://huggingface.co/models' If this is a private repository, make sure to pass a token having permission to this repo either by logging in with huggingface-cli loginor by passingtoken=<your_token>` **its because the translation is currently not supported**.
+    - **If into your file your have** : Translation between the same languages is not supported, **just change your language**.
+    """)