Problems with an application that was already working

Community Cloud
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Hello everyone, I would greatly appreciate your help with an application I have on the free Streamlit cloud service. The application has been running smoothly for months, but for the last three days it hasn't been working properly. I've tried restarting it, but nothing works. I've attached some screenshots showing how it gets stuck during the loading process.
I would be very grateful if anyone could help me with this; I honestly don't know what to do.

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As shown in the image, it stays the same for a long time and never progresses. As I said before, this application has been working for months.

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Hey there, thanks for reaching out and sharing your screenshots! :blush: It sounds frustrating when an app that’s been working for months suddenly gets stuck at “Your application is in the oven” (or “Tu aplicación está en el horno”) and won’t finish loading. This is a common issue on Streamlit Community Cloud, especially when the logs show steps like “Provisioning machine,” “Preparing system,” and “Spinning up manager process” without progressing further.

Based on the official docs and community reports, this can happen due to temporary platform issues, resource limits, or dependency problems. The recommended steps are: (1) try rebooting your app from the workspace or Cloud logs, (2) check your requirements.txt for any recent changes or dependency issues, and (3) if the problem persists, try deleting and redeploying the app. Sometimes, these issues are on Streamlit’s end and resolve themselves after a while. If you’re still stuck, check the Streamlit forums for similar reports, as outages or platform-wide issues are often discussed there. For more details, see the official guidance on deployment issues and resource limits.

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I am facing a similar issue. The app which work working for months his stuckin oven. Please hlep>

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For me the issue was my apps were still using Python version 3.9.
Updating the apps to use version 3.13 fixed this.

3 Likes
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To add to this, for me the fix was changing the python version in the app settings (not in the requirements file) and then rebooting the app.

The settings menu is accessible either from the “My apps” page or in the app itself, “Manage app” > “…” > “Settings”.

1 Like
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Thank you for your explanations. The Python version was the problem; I changed it and also modified some libraries, and now everything works fine.

Thank you very much for your attention and support.

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