add error handling for Keyerror

app.py

@@ -87,8 +87,13 @@ with gr.Blocks() as demo:
         ids = get_zotero_ids(zotero_api_key, zotero_library_id, zotero_tag)
 
         df = get_arxiv_papers(ids)
-
-        embeddings, dim = get_hf_embeddings(hf_api_key, df)
+        try:
+            embeddings, dim = get_hf_embeddings(hf_api_key, df)
+        except KeyError as e:
+            print(e)
+            print('\n Resetting project...')
+            reset_project()
+            exit()
 
         feedback = upload_to_pinecone(pinecone_api_key, index_name, namespace_name, embeddings, dim, df)