First welcome back to the Streamlit Community, its been a while since we have seen you!!
There could be many things that are making your app go over its resource limit. On our Community cloud platform, each app gets 1 GB of each CPU and RAM. And without access to the code the best I can suggest is to checkout our posts about making your apps more efficient to avoid going over resources and getting the Argh page:
If your cloud account is in the community tier (i.e. it’s free) then you can’t have apps from private repos which is likely why you encountered the error.
If you want to be able to deploy apps from private repos then you can check out the paid tiers here: