Hey there, thanks for sharing your question and all those helpful details! This is a common issue when a Streamlit Community Cloud app’s GitHub coordinates (repo name, branch, or entrypoint file) have changed, or if the app was deleted and redeployed with the same custom subdomain. When this happens, the app may still appear in your workspace, but the URL returns “You do not have access to this app or it does not exist.” This can also occur if the app’s GitHub repo or branch was renamed, or if there’s a mismatch between your Streamlit and GitHub accounts.