I created an app and deployed it on streamlit cloud. It runs perfectly on localhost on my computer. I deployed it and it also worked fine on streamlit cloud. However, after a few days, without changing anything, it stopped working on the streamlit cloud and when I open the app it does not start and stuck in the “please wait” message on the screen. it works fine on localhost, the problem is when it is deployed on streamlit cloud. what is wrong with it?!
Hi @hamed, welcome to the Streamlit Community! 
Could you try checking again and/or opening the app in an incognito window?
The app loads fine for me 
:
thank you so much! in every browser and in the incognito mode it is still not working in my laptop!!
I’m unsure what the issue could be. The app loads perfectly fine for me in my normal browser tab and incognito
Do you see any errors in your browser console?
I found something:
I use VPN, and when I connect from Canada, it works! so there is nothing wrong with Streamlit.
but when I connect from Australia, it stuck! this is the error in the console:
Unfortunately, this is something I don’t have the answer to. Could be something along your network / ISP that’s causing the timeouts.
thank you so much for your time ! 
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Hi! bit late, but can you try rebooting the app from streamlit’s page?
it is IP issue, from Australia it does not work and some other countries, but from canada it works!
Hey, I just had the same issue. The fix for me was downgrading to v1.11.0
I simply uninstalled the latest version I had and installed with pip install streamlit==1.11.0
Hope this helps
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Hello,
I seem to be encountering the same issue as above. My requirements.txt file only consists of the key packages and the app works fine locally.
However, when I try to deploy it the app is stuck “In the oven” and in the logs it says “updated app!”. I have deleted and rebooted this several times. I have also tried to view it via incognito but all it says is booting app.
Thank you, it works.
Thanks a lot.
It works!