Update app.py

app.py

@@ -119,7 +119,7 @@ with st.sidebar:
                 remove_old_files()
                 
             if uploaded_file:
-                filepath = os.path.join(DATA_DIR, uploaded_file.name)
+                filepath = os.path.join("data", uploaded_file.name)
                 with open(filepath, "wb") as f:
                     f.write(uploaded_file.getbuffer())