Hey there, thanks for sharing all the details and welcome to the community! The “Oh no. Error running app” message on Streamlit Community Cloud usually means your app hit a runtime error or exceeded resource limits. Since you’re using Python 3.12.4 and Streamlit 1.32.0, both are supported, but your requirements or code may not be compatible with the cloud environment, or you may be missing dependencies in your requirements.txt. Also, if your app uses too much memory or CPU, it can crash with this error. You can check the logs by clicking the “Manage app” button in the lower right of your app page for more details on the error cause.
To debug, make sure your requirements.txt is up to date and includes all necessary packages. If you see “Error installing requirements” or resource limit errors in the logs, try optimizing your app (e.g., use st.cache_data, reduce memory usage, or move large datasets to a database). For more tips, see the resource limits guide and deployment troubleshooting. If you’re still stuck, please share your app logs and a minimum reproducible example of your code so the community can help further!