Hey there, thanks so much for reaching out and for providing all the details—welcome to the Streamlit community! 
The error “Your account has exceeded the fair-use limits and was blocked by the system. Code: 403” means your Streamlit Community Cloud account was automatically blocked, usually due to exceeding resource or fair-use limits. This is often triggered by rapid redeployments, repeated reboots, or multiple build attempts during debugging—even if it’s normal development activity and not actual abuse. This is a common issue and is usually fixable!
To resolve this, you’ve already taken the right steps by submitting a support ticket and posting here. The Streamlit team will review your case and help unblock your account if appropriate. For reference, the official process is outlined in the docs: How to submit a support case for Streamlit Community Cloud and Login attempt to Streamlit Community Cloud fails with error 403. If you’d like help optimizing your app to avoid future blocks, please share a minimum reproducible example or your repo link so the community can jump in with tips! Community members—feel free to share your experiences or advice!
Sources:
- How to submit a support case for Streamlit Community Cloud
- Discourse: Account blocked error 403 requesting review
- Discourse: Hit the 403 fair-use limit from failed deployment
- Discourse: Account blocked fair-use limit during app development
- Discourse: My Streamlit Cloud account was blocked 403 fair-use error
- Discourse: Urgent: Streamlit Community Cloud Account Blocked - 403 Error (Exceeded Fair-Use Limits)
- GitHub Issue: Unable to log in to Streamlit Community Cloud – Receiving 403 Error
- Login attempt to Streamlit Community Cloud fails with error 403